-3=9+v

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Solution for -3=9+v equation: 



-3=9+v

We move all terms to the left:

-3-(9+v)=0

We add all the numbers together, and all the variables

-(v+9)-3=0

We get rid of parentheses

-v-9-3=0

We add all the numbers together, and all the variables

-1v-12=0

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

-v=12

v=12/-1

v=-12

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