Question

Solve 3|2x + 2| − 7 = 5 for x.

Answer 1

1) add 7 to both sides
2) divide both sides by 3
what do you get?

Answer 2

4

Answer 3

yes, on the right you get 4, on the left you have \(|2x+2|\) so you have to solve
\[|2x+2|=4\] which you do by solving two separate equations:
\[2x+2=-4\] or \[2x+2=4\]