-84=-3(4+3m)

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Solution for -84=-3(4+3m) equation: 



-84=-3(4+3m)

We move all terms to the left:

-84-(-3(4+3m))=0

We add all the numbers together, and all the variables

-(-3(3m+4))-84=0



We calculate terms in parentheses: -(-3(3m+4)), so:

-3(3m+4)

We multiply parentheses

-9m-12

Back to the equation:

-(-9m-12)



We get rid of parentheses

9m+12-84=0

We add all the numbers together, and all the variables

9m-72=0

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

9m=72

m=72/9

m=8

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