3m+9=-6m

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Solution for 3m+9=-6m equation: 



3m+9=-6m

We move all terms to the left:

3m+9-(-6m)=0

We get rid of parentheses

3m+6m+9=0

We add all the numbers together, and all the variables

9m+9=0

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

9m=-9

m=-9/9

m=-1

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