Question

Generating equivalent expressions

Justify each step used to simplify the expression.
  =(3x-2x) + 2y + 2

Plz help!

Answer 1

First you would solve what is in the parentheses so 3x-2x=1x or x. Then you would look to see if there are any like terms throughout the rest of the equation which there aren't. Therefore your answer is x+2y+2.