9=m+3m

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Solution for 9=m+3m equation: 



9=m+3m

We move all terms to the left:

9-(m+3m)=0

We add all the numbers together, and all the variables

-(+4m)+9=0

We get rid of parentheses

-4m+9=0

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

-4m=-9

m=-9/-4

m=2+1/4

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