7b-7-8b=15

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Solution for 7b-7-8b=15 equation: 



7b-7-8b=15

We move all terms to the left:

7b-7-8b-(15)=0

We add all the numbers together, and all the variables

-1b-22=0

We move all terms containing b to the left, all other terms to the right

-b=22

b=22/-1

b=-22

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