-84=-2(7m-7)=

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Solution for -84=-2(7m-7)= equation: 



-84=-2(7m-7)=

We move all terms to the left:

-84-(-2(7m-7))=0



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

-2(7m-7)

We multiply parentheses

-14m+14

Back to the equation:

-(-14m+14)



We get rid of parentheses

14m-14-84=0

We add all the numbers together, and all the variables

14m-98=0

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

14m=98

m=98/14

m=7

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