-3m=-7-2m

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Solution for -3m=-7-2m equation: 



-3m=-7-2m

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3m+2m+7=0

We add all the numbers together, and all the variables

-1m+7=0

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

-m=-7

m=-7/-1

m=+7

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