well if your looking for x and y in this situation you won't have number values as your answer, instead you will have a equation. 3x+3y=10 to find x: you have to get x by itself 3x=10-3y x=(10-3y)/3 or x=(10/3)-y to find y: you have to get y by itself 3y=10-3x y=(10-3x)/3 or y=(10/3)-x I hope this is what you're looking for...