Math Solve for both systems: 3x + y = - 3 and - 3x + y = 9 Asked by AnneS2 on 02 Nov 07:30 Last updated by anonymous on 03 Nov 13:35
3x + y = - 3 3x-3x + y = - 3-3x y = - 3-3x - 3x + y = 9 - 3x + - 3-3x = 9 - 3-6x = 9 - 3-6x +3= 9+3 -6x=12 -6x/-6=12/-6 x=-2 y = - 3-3x y = - 3-3(-2) y = - 3+6=3
