Solve: x−2y=1,x+2y=9x - 2y = 1, x + 2y = 9x−2y=1,x+2y=9.
(5,2)(5, 2)(5,2)
(4,1.5)(4, 1.5)(4,1.5)
(5,4)(5, 4)(5,4)
(4,2.5)(4, 2.5)(4,2.5)