Algebra practice question

Answer: 4

2x + k ≥ 3x − 1 gives k + 1 ≥ x, so the solution set is x ≤ k + 1. Setting k + 1 = 5 gives k = 4.

Common wrong answers

If you answered 5

5 forgets the −1 on the right side.

If you answered 6

6 adds 1 instead of subtracting.

If you answered -4

−4 has the sign wrong.

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