3x+15=2x+60 is it true

3x+15=2x+60

3x-2x+15=60

3x-2x=60-15

x=60-15

x=45

3x+15=2x+60

We move all terms to the left:

3x+15 - (2x+60) = 0

We get rid of parentheses

3x-2x-60+15=0

We add all the numbers together, and all the variables

x-45=0

We move all terms containing x to the left, all other terms to the right

x=45