You can put this solution on YOUR website! y = -1/2x - 3
4x -2y = 16
divide both sides of = by 2
2x -y = 8
subtract 2x from both sides of =
-y = -2x + 8
divide both sides of = by -
y = 2x - 8
here is graph, note y = -1/2x - 3 is red, y = 2x - 8 is green
solution is (2, -4), that is x = 2, y = -4