-15=3(m+2)

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Solution for -15=3(m+2) equation: 



-15=3(m+2)

We move all terms to the left:

-15-(3(m+2))=0



We calculate terms in parentheses: -(3(m+2)), so:

3(m+2)

We multiply parentheses

3m+6

Back to the equation:

-(3m+6)



We get rid of parentheses

-3m-6-15=0

We add all the numbers together, and all the variables

-3m-21=0

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

-3m=21

m=21/-3

m=-7

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