Question

If x = 5, then which equation is NOT true?

-2x ≤ 12
x - 2>7
2x < 12
x-7<2

Answer 1

x - 2 > 7

Explanation:

Substitute the value 5 for x.

x = 5

-2x ≤ 12

-2(5) ≤ 12

-10 ≤ 12 True

-10 is less than or equal to 12

x - 2 > 7

5 - 2 > 7

3 > 7 Not true

3 is greater than 7

2x < 12

2(5) < 12

10 < 12 True

10 is less than 12

x - 7 < 2

5 - 7 < 2

-2 < 2 True

-2 is less than 2