12=-3-v

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Solution for 12=-3-v equation: 



12=-3-v

We move all terms to the left:

12-(-3-v)=0

We add all the numbers together, and all the variables

-(-1v-3)+12=0

We get rid of parentheses

1v+3+12=0

We add all the numbers together, and all the variables

v+15=0

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

v=-15

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