-7=7(b-12)

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Solution for -7=7(b-12) equation: 



-7=7(b-12)

We move all terms to the left:

-7-(7(b-12))=0



We calculate terms in parentheses: -(7(b-12)), so:

7(b-12)

We multiply parentheses

7b-84

Back to the equation:

-(7b-84)



We get rid of parentheses

-7b+84-7=0

We add all the numbers together, and all the variables

-7b+77=0

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

-7b=-77

b=-77/-7

b=+11

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