Question

How do you solve 9x-(5x-7)=39

Answer 1

9x-5x+7=39
4x+7=39
4x+7=39
-7 -7
4x=32
Divide that with 4 and is x=8.

Answer 2

First thing you would do is distribute the negative on the outside of the parentheses to the inside terms:

9x - 5x + 7 = 39

Now, combine like terms:

4x + 7 = 39

Subtract 7 from both sides to get variables on one side of the equal sign and constants on the other:

4x = 39 - 7

4x = 32

Divide both sides by 4 to isolate the variable x.

x = 32 / 4

x = 8