Question

Solve for x: |2x + 6| - 4 = 20

Answer 1

x : |2x + 6| - 4 = 20
+4 +4
x: |2x+6| = 24
-6 -6
x: 2x = 18
x/2 = 18/2
Answer x= 9

Answer 2

there will generally be 2 answers for s with absolute values: in this case we want to know when:

2x+6 = 24

and

2x+6 = -24