Respuesta :

3b-6-2b+4=2-7b
b-2=2-7b
8b=4
b=4/8
b=1/2

Hope this helps.
3-2(b-2) = 2-7b

Distribute the -2 to b-2.

3-2b+4 = 2-7b

Combine Like Terms.

-2b+7 = 2-7b

Add +7b to both sides.

5b+7 = 2

Subtract 7 from both sides.

5b = -5

Divide by 5 on both sides.

b=-1