Question

What is the solution of 3|2x + 7|- 9 <0?

Answer 1

-5 < x < -2.

Explanation:

3|2x + 7|- 9 <0

3|2x + 7| < 9 Divide through by 3:

|2x + 7| < 3

2x + 7 < 3

2x < -4

x < -2.

Also 2x + 7 > -3

2x > -10

x > -5.