3m+12=-15

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Solution for 3m+12=-15 equation: 



3m+12=-15

We move all terms to the left:

3m+12-(-15)=0

We add all the numbers together, and all the variables

3m+27=0

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

3m=-27

m=-27/3

m=-9

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