84=7(b-84)

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Solution for 84=7(b-84) equation: 



84=7(b-84)

We move all terms to the left:

84-(7(b-84))=0



We calculate terms in parentheses: -(7(b-84)), so:

7(b-84)

We multiply parentheses

7b-588

Back to the equation:

-(7b-588)



We get rid of parentheses

-7b+588+84=0

We add all the numbers together, and all the variables

-7b+672=0

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

-7b=-672

b=-672/-7

b=+96

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