-315=-7(5-5m)

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Solution for -315=-7(5-5m) equation: 



-315=-7(5-5m)

We move all terms to the left:

-315-(-7(5-5m))=0

We add all the numbers together, and all the variables

-(-7(-5m+5))-315=0



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

-7(-5m+5)

We multiply parentheses

35m-35

Back to the equation:

-(35m-35)



We get rid of parentheses

-35m+35-315=0

We add all the numbers together, and all the variables

-35m-280=0

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

-35m=280

m=280/-35

m=-8

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