3m+4m-12=30

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Solution for 3m+4m-12=30 equation: 



3m+4m-12=30

We move all terms to the left:

3m+4m-12-(30)=0

We add all the numbers together, and all the variables

7m-42=0

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

7m=42

m=42/7

m=6

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