The first step in simplifying this expression is to identify which, if any, terms can be combined. Remember, only like terms — constant terms or terms with the same variable — can be combined.
3x - 7 + 2x
In this case, we have two x-terms and a constant.
Only the x-terms can be combined, so to simplify the expression we will rearrange it according to the Commutative Property of Addition and then evaluate the sum of the like terms.
