Math Solve for 3x - 2y = 9 and - 4x - 2y = 16 Asked by AnneS2 on 18 Jun 05:11 Last updated by anonymous on 19 Jun 12:43
- 4x - 2y = 16 - 4x - 2y+4x = 16+4x -2y= 16+4x -2y/-2= 16/-2+4x/-2 y=-8-2x 3x - 2y = 9 3x - 2(-8-2x) = 9 3x - 2(-8) (-2)(-2x) = 9 3x+16+4x=9 16+7x=9 16+7x-16=9-16 7x=-7 7x/7=-7/7 x=-1 y=-8-2x y=-8-2(-1) y=-8+2 y=-6