AlgebraHardInequality with a negative coefficient
Algebra practice question
Which of the following describes all solutions of 3 − 4x ≥ −9?
- A. x ≤ 3Correct
- B. x ≥ 3
- C. x ≤ −3
- D. x ≥ −3
Answer: A. x ≤ 3
Subtract 3: −4x ≥ −12. Divide by −4 and flip: x ≤ 3.
Why the other answers are wrong
- B. x ≥ 3
- x ≥ 3 forgets to flip the inequality.
- C. x ≤ −3
- x ≤ −3 mishandles the sign of 12.
- D. x ≥ −3
- x ≥ −3 is wrong on both counts.
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