Crozznnooooooooooooooooooooooooooooo 2 variant

1a   (4x-3y)+(4x+3y)=8x
1b    (3+2x-x)+(x-x)=3+2x-x+x-x=3+x
2a    (5x-y)-(5x+y)=5x-y-5x-y=-2y
2b    (4-x+3x)-(2x-x+4)=4-x+3x-2x+x-4=x
3a    6y+3-2y+2y=8y-2y+3
3b    9+y-4+5y=y+5y+5
3c    2y-5+3y+4-y=2y+2y-1
3d    6-9+2y+6y-7y+3+7y=8y
4a    2x+(2x-4)
4b    4x-(2x-1)
5a    9-x+(-2y+3z)
5b    9-x-(2y-3z)