whats "x" in 5(x+2) - 7 = -32 ?

Question

My book doesnt explain how to work these problems very well.

Answer 1

Problem: whats "x" in 5(x+2) - 7 = -32 ?
My book doesnt explain how to work these problems very well.

5(x + 2) - 7 = -32
Work with the parentheses first.
5x + 10 - 7 = -32
Now, step by step.....
5x + 3 = -32
5x + 3 - 3 = -32 - 3
5x = -35
5x/5 = -35/5
x = -7

Check the answer.

5(x + 2) - 7 = -32
5(-7 + 2) - 7 = -32
5(-5) - 7 = -32
-25 - 7 = -32
-32 = -32