Linear Equation Foundations

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This question bank has corresponding bilingual step-by-step derivations. Source candidate and English ai_candidate states are retained. AI review, finite computation and Lean formal proof are labelled separately.

batch-20260927-linear-equation-foundations · 2026-09-27 · 100 questions

This English edition is an AI candidate and does not yet have an OCME Atlas (GPT-6) Twin closure receipt.

1. Validity of a Linear-Equation Form

Over the rational numbers, consider 0x+(-12)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

No

a=0, so this is a degenerate constant equation rather than a linear equation in one variable.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

2. Validity of a Linear-Equation Form

Over the rational numbers, consider -3x+(-11)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-3≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

3. Validity of a Linear-Equation Form

Over the rational numbers, consider -2x+(-10)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-2≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

4. Validity of a Linear-Equation Form

Over the rational numbers, consider -1x+(-9)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

5. Validity of a Linear-Equation Form

Over the rational numbers, consider 1x+(-8)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

6. Validity of a Linear-Equation Form

Over the rational numbers, consider 0x+(-7)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

No

a=0, so this is a degenerate constant equation rather than a linear equation in one variable.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

7. Validity of a Linear-Equation Form

Over the rational numbers, consider 2x+(-6)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=2≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

8. Validity of a Linear-Equation Form

Over the rational numbers, consider 3x+(-5)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=3≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

9. Validity of a Linear-Equation Form

Over the rational numbers, consider 4x+(-4)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=4≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

10. Validity of a Linear-Equation Form

Over the rational numbers, consider -4x+(-3)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-4≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

11. Validity of a Linear-Equation Form

Over the rational numbers, consider 0x+(-2)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

No

a=0, so this is a degenerate constant equation rather than a linear equation in one variable.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

12. Validity of a Linear-Equation Form

Over the rational numbers, consider -2x+(-1)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-2≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

13. Validity of a Linear-Equation Form

Over the rational numbers, consider -1x+(0)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

14. Validity of a Linear-Equation Form

Over the rational numbers, consider 1x+(1)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

15. Validity of a Linear-Equation Form

Over the rational numbers, consider 1x+(2)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

16. Validity of a Linear-Equation Form

Over the rational numbers, consider 0x+(3)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

No

a=0, so this is a degenerate constant equation rather than a linear equation in one variable.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

17. Validity of a Linear-Equation Form

Over the rational numbers, consider 3x+(4)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=3≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

18. Validity of a Linear-Equation Form

Over the rational numbers, consider 4x+(5)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=4≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

19. Validity of a Linear-Equation Form

Over the rational numbers, consider -4x+(6)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-4≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

20. Validity of a Linear-Equation Form

Over the rational numbers, consider -3x+(7)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-3≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

21. Validity of a Linear-Equation Form

Over the rational numbers, consider 0x+(8)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

No

a=0, so this is a degenerate constant equation rather than a linear equation in one variable.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

22. Validity of a Linear-Equation Form

Over the rational numbers, consider -1x+(9)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=-1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

23. Validity of a Linear-Equation Form

Over the rational numbers, consider 1x+(10)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

24. Validity of a Linear-Equation Form

Over the rational numbers, consider 1x+(11)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=1≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

25. Validity of a Linear-Equation Form

Over the rational numbers, consider 2x+(12)=0. Under this MKO, is it a linear equation in one variable?

View answer and explanation

Yes

a=2≠0, so this is a linear equation in one variable under the MKO definition.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-form-validity · candidate

26. Exact Solution of a Linear Equation

Solve -5x+(-15)=0 exactly over the rational numbers; a=-5 is explicitly nonzero.

View answer and explanation

-3

x=−(-15)/-5=-3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

27. Exact Solution of a Linear Equation

Solve -4x+(-8)=0 exactly over the rational numbers; a=-4 is explicitly nonzero.

View answer and explanation

-2

x=−(-8)/-4=-2; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

28. Exact Solution of a Linear Equation

Solve -3x+(-1)=0 exactly over the rational numbers; a=-3 is explicitly nonzero.

View answer and explanation

-1/3

x=−(-1)/-3=-1/3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

29. Exact Solution of a Linear Equation

Solve -2x+(6)=0 exactly over the rational numbers; a=-2 is explicitly nonzero.

View answer and explanation

3

x=−(6)/-2=3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

30. Exact Solution of a Linear Equation

Solve -1x+(13)=0 exactly over the rational numbers; a=-1 is explicitly nonzero.

View answer and explanation

13

x=−(13)/-1=13; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

31. Exact Solution of a Linear Equation

Solve 1x+(-11)=0 exactly over the rational numbers; a=1 is explicitly nonzero.

View answer and explanation

11

x=−(-11)/1=11; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

32. Exact Solution of a Linear Equation

Solve 1x+(-4)=0 exactly over the rational numbers; a=1 is explicitly nonzero.

View answer and explanation

4

x=−(-4)/1=4; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

33. Exact Solution of a Linear Equation

Solve 2x+(3)=0 exactly over the rational numbers; a=2 is explicitly nonzero.

View answer and explanation

-3/2

x=−(3)/2=-3/2; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

34. Exact Solution of a Linear Equation

Solve 3x+(10)=0 exactly over the rational numbers; a=3 is explicitly nonzero.

View answer and explanation

-10/3

x=−(10)/3=-10/3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

35. Exact Solution of a Linear Equation

Solve 4x+(-14)=0 exactly over the rational numbers; a=4 is explicitly nonzero.

View answer and explanation

7/2

x=−(-14)/4=7/2; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

36. Exact Solution of a Linear Equation

Solve 5x+(-7)=0 exactly over the rational numbers; a=5 is explicitly nonzero.

View answer and explanation

7/5

x=−(-7)/5=7/5; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

37. Exact Solution of a Linear Equation

Solve -5x+(0)=0 exactly over the rational numbers; a=-5 is explicitly nonzero.

View answer and explanation

0

x=−(0)/-5=0; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

38. Exact Solution of a Linear Equation

Solve -4x+(7)=0 exactly over the rational numbers; a=-4 is explicitly nonzero.

View answer and explanation

7/4

x=−(7)/-4=7/4; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

39. Exact Solution of a Linear Equation

Solve -3x+(14)=0 exactly over the rational numbers; a=-3 is explicitly nonzero.

View answer and explanation

14/3

x=−(14)/-3=14/3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

40. Exact Solution of a Linear Equation

Solve -2x+(-10)=0 exactly over the rational numbers; a=-2 is explicitly nonzero.

View answer and explanation

-5

x=−(-10)/-2=-5; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

41. Exact Solution of a Linear Equation

Solve -1x+(-3)=0 exactly over the rational numbers; a=-1 is explicitly nonzero.

View answer and explanation

-3

x=−(-3)/-1=-3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

42. Exact Solution of a Linear Equation

Solve 1x+(4)=0 exactly over the rational numbers; a=1 is explicitly nonzero.

View answer and explanation

-4

x=−(4)/1=-4; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

43. Exact Solution of a Linear Equation

Solve 1x+(11)=0 exactly over the rational numbers; a=1 is explicitly nonzero.

View answer and explanation

-11

x=−(11)/1=-11; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

44. Exact Solution of a Linear Equation

Solve 2x+(-13)=0 exactly over the rational numbers; a=2 is explicitly nonzero.

View answer and explanation

13/2

x=−(-13)/2=13/2; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

45. Exact Solution of a Linear Equation

Solve 3x+(-6)=0 exactly over the rational numbers; a=3 is explicitly nonzero.

View answer and explanation

2

x=−(-6)/3=2; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

46. Exact Solution of a Linear Equation

Solve 4x+(1)=0 exactly over the rational numbers; a=4 is explicitly nonzero.

View answer and explanation

-1/4

x=−(1)/4=-1/4; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

47. Exact Solution of a Linear Equation

Solve 5x+(8)=0 exactly over the rational numbers; a=5 is explicitly nonzero.

View answer and explanation

-8/5

x=−(8)/5=-8/5; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

48. Exact Solution of a Linear Equation

Solve -5x+(15)=0 exactly over the rational numbers; a=-5 is explicitly nonzero.

View answer and explanation

3

x=−(15)/-5=3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

49. Exact Solution of a Linear Equation

Solve -4x+(-9)=0 exactly over the rational numbers; a=-4 is explicitly nonzero.

View answer and explanation

-9/4

x=−(-9)/-4=-9/4; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

50. Exact Solution of a Linear Equation

Solve -3x+(-2)=0 exactly over the rational numbers; a=-3 is explicitly nonzero.

View answer and explanation

-2/3

x=−(-2)/-3=-2/3; the result is reduced by the gcd to a canonical rational with a positive denominator.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-exact-solve · candidate

51. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -4x+(-14)=0 and the candidate x=-7/2. Is the candidate a solution?

View answer and explanation

Yes

q=2≠0 and -4×-7+(-14)×2=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

52. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -3x+(-9)=0 and the candidate x=-2/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -3×-2+(-9)×1=-3, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

53. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -2x+(-4)=0 and the candidate x=-2/1. Is the candidate a solution?

View answer and explanation

Yes

q=1≠0 and -2×-2+(-4)×1=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

54. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -1x+(1)=0 and the candidate x=2/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -1×2+(1)×1=-1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

55. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(6)=0 and the candidate x=-3/1. Is the candidate a solution?

View answer and explanation

Yes

q=1≠0 and 2×-3+(6)×1=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

56. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 1x+(11)=0 and the candidate x=-10/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 1×-10+(11)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

57. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(-13)=0 and the candidate x=13/2. Is the candidate a solution?

View answer and explanation

Yes

q=2≠0 and 2×13+(-13)×2=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

58. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 3x+(-8)=0 and the candidate x=3/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 3×3+(-8)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

59. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 4x+(-3)=0 and the candidate x=3/4. Is the candidate a solution?

View answer and explanation

Yes

q=4≠0 and 4×3+(-3)×4=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

60. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -4x+(2)=0 and the candidate x=1/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -4×1+(2)×1=-2, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

61. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -3x+(7)=0 and the candidate x=7/3. Is the candidate a solution?

View answer and explanation

Yes

q=3≠0 and -3×7+(7)×3=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

62. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -2x+(12)=0 and the candidate x=7/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -2×7+(12)×1=-2, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

63. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -1x+(-12)=0 and the candidate x=-12/1. Is the candidate a solution?

View answer and explanation

Yes

q=1≠0 and -1×-12+(-12)×1=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

64. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(-7)=0 and the candidate x=4/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 2×4+(-7)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

65. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 1x+(-2)=0 and the candidate x=2/1. Is the candidate a solution?

View answer and explanation

Yes

q=1≠0 and 1×2+(-2)×1=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

66. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(3)=0 and the candidate x=-1/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 2×-1+(3)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

67. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 3x+(8)=0 and the candidate x=-8/3. Is the candidate a solution?

View answer and explanation

Yes

q=3≠0 and 3×-8+(8)×3=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

68. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 4x+(13)=0 and the candidate x=-3/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 4×-3+(13)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

69. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -4x+(-11)=0 and the candidate x=-11/4. Is the candidate a solution?

View answer and explanation

Yes

q=4≠0 and -4×-11+(-11)×4=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

70. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -3x+(-6)=0 and the candidate x=-1/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -3×-1+(-6)×1=-3, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

71. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -2x+(-1)=0 and the candidate x=-1/2. Is the candidate a solution?

View answer and explanation

Yes

q=2≠0 and -2×-1+(-1)×2=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

72. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider -1x+(4)=0 and the candidate x=5/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and -1×5+(4)×1=-1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

73. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(9)=0 and the candidate x=-9/2. Is the candidate a solution?

View answer and explanation

Yes

q=2≠0 and 2×-9+(9)×2=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

74. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 1x+(14)=0 and the candidate x=-13/1. Is the candidate a solution?

View answer and explanation

No

q=1≠0 and 1×-13+(14)×1=1, so the candidate is not a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

75. Cross-Multiplication Check of a Rational Solution

Over the rational numbers, consider 2x+(-10)=0 and the candidate x=5/1. Is the candidate a solution?

View answer and explanation

Yes

q=1≠0 and 2×5+(-10)×1=0, so the candidate is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-verification · candidate

76. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(0)=0.

View answer and explanation

all rational numbers are solutions

With a=0 and b=0, the equation is 0=0, so every rational number is a solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

77. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(1)=0.

View answer and explanation

no solution

With a=0 and b=1≠0, the equation is 1=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

78. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(2)=0.

View answer and explanation

no solution

With a=0 and b=2≠0, the equation is 2=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

79. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(3)=0.

View answer and explanation

no solution

With a=0 and b=3≠0, the equation is 3=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

80. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(4)=0.

View answer and explanation

no solution

With a=0 and b=4≠0, the equation is 4=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

81. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(5)=0.

View answer and explanation

no solution

With a=0 and b=5≠0, the equation is 5=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

82. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(6)=0.

View answer and explanation

no solution

With a=0 and b=6≠0, the equation is 6=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

83. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(7)=0.

View answer and explanation

no solution

With a=0 and b=7≠0, the equation is 7=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

84. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 0x+(8)=0.

View answer and explanation

no solution

With a=0 and b=8≠0, the equation is 8=0, so it has no solution.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

85. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 3x+(-3)=0.

View answer and explanation

unique solution x=1

Because a=3≠0, the equation has the unique solution x=1.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

86. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 4x+(-2)=0.

View answer and explanation

unique solution x=1/2

Because a=4≠0, the equation has the unique solution x=1/2.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

87. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 5x+(-1)=0.

View answer and explanation

unique solution x=1/5

Because a=5≠0, the equation has the unique solution x=1/5.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

88. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 6x+(0)=0.

View answer and explanation

unique solution x=0

Because a=6≠0, the equation has the unique solution x=0.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

89. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 7x+(1)=0.

View answer and explanation

unique solution x=-1/7

Because a=7≠0, the equation has the unique solution x=-1/7.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

90. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 1x+(2)=0.

View answer and explanation

unique solution x=-2

Because a=1≠0, the equation has the unique solution x=-2.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

91. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 2x+(3)=0.

View answer and explanation

unique solution x=-3/2

Because a=2≠0, the equation has the unique solution x=-3/2.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

92. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 3x+(4)=0.

View answer and explanation

unique solution x=-4/3

Because a=3≠0, the equation has the unique solution x=-4/3.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

93. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 4x+(5)=0.

View answer and explanation

unique solution x=-5/4

Because a=4≠0, the equation has the unique solution x=-5/4.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

94. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 5x+(6)=0.

View answer and explanation

unique solution x=-6/5

Because a=5≠0, the equation has the unique solution x=-6/5.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

95. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 6x+(7)=0.

View answer and explanation

unique solution x=-7/6

Because a=6≠0, the equation has the unique solution x=-7/6.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

96. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 7x+(8)=0.

View answer and explanation

unique solution x=-8/7

Because a=7≠0, the equation has the unique solution x=-8/7.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

97. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 1x+(9)=0.

View answer and explanation

unique solution x=-9

Because a=1≠0, the equation has the unique solution x=-9.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

98. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 2x+(10)=0.

View answer and explanation

unique solution x=-5

Because a=2≠0, the equation has the unique solution x=-5.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

99. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 3x+(11)=0.

View answer and explanation

unique solution x=-11/3

Because a=3≠0, the equation has the unique solution x=-11/3.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

100. Solution Classification of a Linear Equation

Over the rational numbers, classify the solution set of 4x+(12)=0.

View answer and explanation

unique solution x=-3

Because a=4≠0, the equation has the unique solution x=-3.

Reviewed step-by-step derivation

Linear equation in one variable · qf-linear-equation-solution-class · candidate

Canonical question JSONL · English JSONL · Validation report