1) 2x-(x-1)/2-2x=21
4x-(x-1)-4x=42
-x+1=42
-x=41
x=-41
2)2x-3x+16=32x
-x+16=32x
16=33x
33x=16
x=16/33
1) 2x-(x-1)/2-2x=21
4x-(x-1)-4x=42
-x+1=42
-x=41
x=-41
2)2x-3x+16=32x
-x+16=32x
16=33x
33x=16
x=16/33