9m+12=-15

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Solution for 9m+12=-15 equation: 



9m+12=-15

We move all terms to the left:

9m+12-(-15)=0

We add all the numbers together, and all the variables

9m+27=0

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

9m=-27

m=-27/9

m=-3

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