Grade one 3x-4 / 2 = X-6, 2 (3x-4) + 7 (4-x) = 4x, y + 2 / 4-2y-3 / 6 = 1

Grade one 3x-4 / 2 = X-6, 2 (3x-4) + 7 (4-x) = 4x, y + 2 / 4-2y-3 / 6 = 1

1、3x-4/2=x-6、
3x-2=x-6
2x=-4
x=-2
2、2(3x-4)+7(4-x)=4x
6x-8 + 28-7x = 4x (shift)
20=4x+7x-6x
5x=20
x=4
3、y+2/4-2y-3/6=1
y+1/2-2y-1/2=1
-y=1
y=-1