-m-7=9+m

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Solution for -m-7=9+m equation: 



-m-7=9+m

We move all terms to the left:

-m-7-(9+m)=0

We add all the numbers together, and all the variables

-m-(m+9)-7=0

We add all the numbers together, and all the variables

-1m-(m+9)-7=0

We get rid of parentheses

-1m-m-9-7=0

We add all the numbers together, and all the variables

-2m-16=0

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

-2m=16

m=16/-2

m=-8

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