3m=42-4m

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Solution for 3m=42-4m equation: 



3m=42-4m

We move all terms to the left:

3m-(42-4m)=0

We add all the numbers together, and all the variables

3m-(-4m+42)=0

We get rid of parentheses

3m+4m-42=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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