-m=-7-2m

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Solution for -m=-7-2m equation: 



-m=-7-2m

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1m+2m+7=0

We add all the numbers together, and all the variables

m+7=0

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

m=-7

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