77=7(b-79)

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Solution for 77=7(b-79) equation: 



77=7(b-79)

We move all terms to the left:

77-(7(b-79))=0



We calculate terms in parentheses: -(7(b-79)), so:

7(b-79)

We multiply parentheses

7b-553

Back to the equation:

-(7b-553)



We get rid of parentheses

-7b+553+77=0

We add all the numbers together, and all the variables

-7b+630=0

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

-7b=-630

b=-630/-7

b=+90

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