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.
5/7x + 15 - 9/14x - 9
In this case, we have two x-terms and two constants. Both the x-terms and constants can be combined. In this case, we can rearrange the expression according to the Commutative Property of Addition and then use the Distributive Property to simplify the expression.
