What are x and y if #4x-4y=-16# and #x-2y=-12#?
There are many ways to solve a system of linear equations.
One of those goes like this:
Take the equation that looks easier to you and solve it for
In this case, if I were you, I would definitely take
...simplify the left side:
... divide by 4 on both sides:
Now that you have the solution for