Solve: y=x−5y = x - 5y=x−5 and x+y=5x + y = 5x+y=5.
(5,0)(5, 0)(5,0)
(0,5)(0, 5)(0,5)
(0,−5)(0, -5)(0,−5)
(10,5)(10, 5)(10,5)