2y = 4x + 4y = 2x + 2
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
8x+30=4x+18 -4x -4x 4x+30=18 -30 -30 4x=-12 4x/4=-12/4 x=-3
4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
3x - 5x + 4x = -2x +4x = 2x
4x + 3y = 8x + y so 3y - y = 8x - 4x ie 2y = 4x so y = 2x
4x-y2=2xy 2x ? y5 if its plus its 7 xy
Add 4x + 2x = 6x + 4 = 6x + 4
Add 4x - 2 to each side: 5x = 5 x = 1
You can't solve it. But you can simplify it to get: 4x+y=2
4x+7-3x = 15 4x-3x = 15-7 x = 8