Posted by Anonymous on .
You are given to equations which are both true, and you are asked to solve for both x and y. you plan o solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x’s or on y’s. the first thing you need to do in this procedure is to what?

algebra 
DrBob222,
You must first solve one of the equations for either x or y.