-90=-3(4m+2)

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Solution for -90=-3(4m+2) equation: 



-90=-3(4m+2)

We move all terms to the left:

-90-(-3(4m+2))=0



We calculate terms in parentheses: -(-3(4m+2)), so:

-3(4m+2)

We multiply parentheses

-12m-6

Back to the equation:

-(-12m-6)



We get rid of parentheses

12m+6-90=0

We add all the numbers together, and all the variables

12m-84=0

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

12m=84

m=84/12

m=7

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