40=v+7v

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Solution for 40=v+7v equation: 



40=v+7v

We move all terms to the left:

40-(v+7v)=0

We add all the numbers together, and all the variables

-(+8v)+40=0

We get rid of parentheses

-8v+40=0

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

-8v=-40

v=-40/-8

v=+5

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