9-7m=-3m-7m

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Solution for 9-7m=-3m-7m equation: 



9-7m=-3m-7m

We move all terms to the left:

9-7m-(-3m-7m)=0

We add all the numbers together, and all the variables

-7m-(-10m)+9=0

We get rid of parentheses

-7m+10m+9=0

We add all the numbers together, and all the variables

3m+9=0

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

3m=-9

m=-9/3

m=-3

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