Solve: 2x+y=52x + y = 52x+y=5 and x+y=3x + y = 3x+y=3.
(2,1)(2, 1)(2,1)
(1,2)(1, 2)(1,2)
(3,−1)(3, -1)(3,−1)
(2.5,0)(2.5, 0)(2.5,0)