7=9-v

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Solution for 7=9-v equation: 



7=9-v

We move all terms to the left:

7-(9-v)=0

We add all the numbers together, and all the variables

-(-1v+9)+7=0

We get rid of parentheses

1v-9+7=0

We add all the numbers together, and all the variables

v-2=0

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

v=2

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