2b-8=-1b+7

2b-8=-1b+7

--------------------------------------------------------------------------------------------------------------------------

OK....let's get the "b's" to the left and everything else to the right.

Add 1b to each side

3b - 8 = 7

Add 8 to each side

3b = 15

Divide by 3 on each side

b = 5

Don't forget to "check" your answer !!