x-6x=-5x 2a+3a-a=5a-a=4a 2b+b=3b 4a-4a=0 4h+2m-m+2h=4h+2h+2m-m= 6h+m 7x-12x=-5x a+4a-6a=5a-6a=-a 3x-x=2x 12c-12c=0 3y+2x-2y+5x=3y-2y+2x+5x=y+7x
x-6x=-5x 2a+3a-a=5a-a=4a 2b+b=3b 4a-4a=0 4h+2m-m+2h=4h+2h+2m-m= 6h+m 7x-12x=-5x a+4a-6a=5a-6a=-a 3x-x=2x 12c-12c=0 3y+2x-2y+5x=3y-2y+2x+5x=y+7x