7(-5m+1)=-7(2m-4)

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Solution for 7(-5m+1)=-7(2m-4) equation: 



7(-5m+1)=-7(2m-4)

We move all terms to the left:

7(-5m+1)-(-7(2m-4))=0

We multiply parentheses

-35m-(-7(2m-4))+7=0



We calculate terms in parentheses: -(-7(2m-4)), so:

-7(2m-4)

We multiply parentheses

-14m+28

Back to the equation:

-(-14m+28)



We get rid of parentheses

-35m+14m-28+7=0

We add all the numbers together, and all the variables

-21m-21=0

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

-21m=21

m=21/-21

m=-1

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