Question

Justify each of your steps using number properties 2x+3y+2x-2y-3x

Answer 1

Have a good homeworks ;)

Answer 2

$Use\ commutative\ property:a+b=b+a\\and\ associative\ property:(a+b)+c=a+(b+c)\\-------------------------\\2x+3y+2x-2y-3x=(2x+2x-3x)+(3y-2y)=\boxed{x+y}$