Question

Solve the following compound inequality.

−10 < 3x + 5 < 26

Select one:
A. -5 < x < 7
B. -19 < x < -8
C. 3 < x < 13
D. 6 < x < 16

Answer 1

A. -5 < x < 7

Explanation:

1) Subtract 5 from the whole equation.

−10 −5 < 3x < 26 −5

2) Simplify

−15 < 3x < 21

3) Divide the whole equation by 3.

−​15/3 < x <​ 21/3

4) Simplify

-5 < x < 7