9=v+2v

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Solution for 9=v+2v equation: 



9=v+2v

We move all terms to the left:

9-(v+2v)=0

We add all the numbers together, and all the variables

-(+3v)+9=0

We get rid of parentheses

-3v+9=0

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

-3v=-9

v=-9/-3

v=+3

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