1) 12x - 7y = 2 4x - 5y = 6 12x - 15y = 18 8y = -16 y=-2 4x+10=6 4x=-4 x=-1 2) 4x - 7y = 30 4x - 5y = 90 -2y= -60 y=30 4x - 150=90 4x=240 x=60