1. Move the<em> -5x </em>over to<em> 8x </em>(tip: when you move the variable it has to be the opposite integer of the original.)
2. Then, add the two variables and you get 13x
3. Move over the 3 to -16
4. Then, add the integers and you get -13
5. Divide, -13 and 13x, and your answer is x = -1.