1. (3b-2) - (5-5b)

2.2x-3/3+7x-13/6+5-2x/2=x-1

3. - 10x (3a-4b-2)

4. 3y (a-2b)

1) (3b-2) - (5-5b) = 3b-2-5+5b=8b-7

2) (2x-3) / 3 + (7x-13) / 6 + (5-2x) / 2=x-1

2 (2x-3) + 7x-13+3 (5-2x) = 6 (x-1)

4x-6+7x-13+15-6x-6x+6=0

-x=-2

x=2

3) - 10x (3a-4b-2) = - 30ax+40bx+20x

4) 3y (a-2b) = 3ay-6by