-138=-6(-5m-7)

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Solution for -138=-6(-5m-7) equation: 



-138=-6(-5m-7)

We move all terms to the left:

-138-(-6(-5m-7))=0



We calculate terms in parentheses: -(-6(-5m-7)), so:

-6(-5m-7)

We multiply parentheses

30m+42

Back to the equation:

-(30m+42)



We get rid of parentheses

-30m-42-138=0

We add all the numbers together, and all the variables

-30m-180=0

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

-30m=180

m=180/-30

m=-6

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