3m+4m=-12

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Solution for 3m+4m=-12 equation: 



3m+4m=-12

We move all terms to the left:

3m+4m-(-12)=0

We add all the numbers together, and all the variables

7m+12=0

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

7m=-12

m=-12/7

m=-1+5/7

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