7(-3-2m)=-7(m-1)

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Solution for 7(-3-2m)=-7(m-1) equation: 



7(-3-2m)=-7(m-1)

We move all terms to the left:

7(-3-2m)-(-7(m-1))=0

We add all the numbers together, and all the variables

7(-2m-3)-(-7(m-1))=0

We multiply parentheses

-14m-(-7(m-1))-21=0



We calculate terms in parentheses: -(-7(m-1)), so:

-7(m-1)

We multiply parentheses

-7m+7

Back to the equation:

-(-7m+7)



We get rid of parentheses

-14m+7m-7-21=0

We add all the numbers together, and all the variables

-7m-28=0

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

-7m=28

m=28/-7

m=-4

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