Solve: x−y=0x - y = 0x−y=0 and 2x+y=62x + y = 62x+y=6.
(2,2)(2, 2)(2,2)
(3,3)(3, 3)(3,3)
(1,1)(1, 1)(1,1)
(0,0)(0, 0)(0,0)