42=7(7+m)

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Solution for 42=7(7+m) equation: 



42=7(7+m)

We move all terms to the left:

42-(7(7+m))=0

We add all the numbers together, and all the variables

-(7(m+7))+42=0



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

7(m+7)

We multiply parentheses

7m+49

Back to the equation:

-(7m+49)



We get rid of parentheses

-7m-49+42=0

We add all the numbers together, and all the variables

-7m-7=0

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

-7m=7

m=7/-7

m=-1

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