-28=7(m+3)

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Solution for -28=7(m+3) equation: 



-28=7(m+3)

We move all terms to the left:

-28-(7(m+3))=0



We calculate terms in parentheses: -(7(m+3)), so:

7(m+3)

We multiply parentheses

7m+21

Back to the equation:

-(7m+21)



We get rid of parentheses

-7m-21-28=0

We add all the numbers together, and all the variables

-7m-49=0

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

-7m=49

m=49/-7

m=-7

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