9v+7=3v-v

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Solution for 9v+7=3v-v equation: 



9v+7=3v-v

We move all terms to the left:

9v+7-(3v-v)=0

We add all the numbers together, and all the variables

9v-(+2v)+7=0

We get rid of parentheses

9v-2v+7=0

We add all the numbers together, and all the variables

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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