AlgebraMediumValue that is not a solution of an inequality
Algebra practice question
Which of the following values of x is NOT a solution of 2x + 5 ≤ 3x − 1?
- A. 5Correct
- B. 6
- C. 7
- D. 10
Answer: A. 5
2x + 5 ≤ 3x − 1 → 6 ≤ x. So 5 fails: 15 ≤ 14 is false.
Why the other answers are wrong
- B. 6
- 6 gives 17 ≤ 17, which is true.
- C. 7
- 7 gives 19 ≤ 20, true.
- D. 10
- 10 gives 25 ≤ 29, true.
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