77=7(m-4)

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Solution for 77=7(m-4) equation: 



77=7(m-4)

We move all terms to the left:

77-(7(m-4))=0



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

7(m-4)

We multiply parentheses

7m-28

Back to the equation:

-(7m-28)



We get rid of parentheses

-7m+28+77=0

We add all the numbers together, and all the variables

-7m+105=0

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

-7m=-105

m=-105/-7

m=+15

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