7=9v-2v

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Solution for 7=9v-2v equation: 



7=9v-2v

We move all terms to the left:

7-(9v-2v)=0

We add all the numbers together, and all the variables

-(+7v)+7=0

We get rid of parentheses

-7v+7=0

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

-7v=-7

v=-7/-7

v=1

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