Solve: 3x-3y=3 y=-5x-17
Substitute y = -5x - 17 into the first equation:-3x - 3y = 3-3x - 3(-5x - 17) = 3-3x + 15x + 51 = 3-3x + 15x = 3 - 5112x = -48x =-48/12 = -4 y = -5x - 17 = -5(-4) - 17 = 20 - 17 = 3 so the solution is x = -4, y = 3