2-m=-7

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Solution for 2-m=-7 equation: 



2-m=-7

We move all terms to the left:

2-m-(-7)=0

We add all the numbers together, and all the variables

-1m+9=0

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

-m=-9

m=-9/-1

m=+9

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