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