Algebra practice question

Answer: A. x ≤ 1

4 − x ≥ 2x + 1 gives 3 ≥ 3x, so x ≤ 1.

Why the other answers are wrong

B. x ≥ 1

The direction is reversed; no division by a negative occurred.

C. x ≤ −1

Sign error on the constant.

D. x ≤ 5/3

5/3 comes from 5 ≥ 3x, adding 1 instead of subtracting.

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