-3m+10-7m=20

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Solution for -3m+10-7m=20 equation: 



-3m+10-7m=20

We move all terms to the left:

-3m+10-7m-(20)=0

We add all the numbers together, and all the variables

-10m-10=0

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

-10m=10

m=10/-10

m=-1

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