4=m-3m

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Solution for 4=m-3m equation: 



4=m-3m

We move all terms to the left:

4-(m-3m)=0

We add all the numbers together, and all the variables

-(-2m)+4=0

We get rid of parentheses

2m+4=0

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

2m=-4

m=-4/2

m=-2

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