-7m-28=-7(5m-4)

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Solution for -7m-28=-7(5m-4) equation: 



-7m-28=-7(5m-4)

We move all terms to the left:

-7m-28-(-7(5m-4))=0



We calculate terms in parentheses: -(-7(5m-4)), so:

-7(5m-4)

We multiply parentheses

-35m+28

Back to the equation:

-(-35m+28)



We get rid of parentheses

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

We add all the numbers together, and all the variables

28m-56=0

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

28m=56

m=56/28

m=2

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