3m-7m=-7m+15

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Solution for 3m-7m=-7m+15 equation: 



3m-7m=-7m+15

We move all terms to the left:

3m-7m-(-7m+15)=0

We add all the numbers together, and all the variables

-4m-(-7m+15)=0

We get rid of parentheses

-4m+7m-15=0

We add all the numbers together, and all the variables

3m-15=0

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

3m=15

m=15/3

m=5

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