v+40=3v

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Solution for v+40=3v equation: 



v+40=3v

We move all terms to the left:

v+40-(3v)=0

We add all the numbers together, and all the variables

-2v+40=0

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

-2v=-40

v=-40/-2

v=+20

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