Solve: x+2y=12,x−y=0x + 2y = 12, x - y = 0x+2y=12,x−y=0.
(4,4)(4, 4)(4,4)
(6,6)(6, 6)(6,6)
(3,3)(3, 3)(3,3)
(0,0)(0, 0)(0,0)