-13-8b=7(4b-7)

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Solution for -13-8b=7(4b-7) equation: 



-13-8b=7(4b-7)

We move all terms to the left:

-13-8b-(7(4b-7))=0



We calculate terms in parentheses: -(7(4b-7)), so:

7(4b-7)

We multiply parentheses

28b-49

Back to the equation:

-(28b-49)



We get rid of parentheses

-8b-28b+49-13=0

We add all the numbers together, and all the variables

-36b+36=0

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

-36b=-36

b=-36/-36

b=1

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