16Hit1600
AlgebraEasy–MediumTesting values against an inequality

Algebra practice question

For which of the following values of x is 3x − 4 greater than 8?

  1. A. 5Correct
  2. B. 4
  3. C. 3
  4. D. 0

Answer: A. 5

3x − 4 > 8 means 3x > 12, so x > 4. Of the choices, only 5 is greater than 4. Check: 15 − 4 = 11 > 8.

Why the other answers are wrong

B. 4
3(4) − 4 = 8, which equals 8 but is not GREATER than 8.
C. 3
3(3) − 4 = 5, less than 8.
D. 0
3(0) − 4 = −4, less than 8.

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