2m-9m=7

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Solution for 2m-9m=7 equation: 



2m-9m=7

We move all terms to the left:

2m-9m-(7)=0

We add all the numbers together, and all the variables

-7m-7=0

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

-7m=7

m=7/-7

m=-1

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