3v+12=-9

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Solution for 3v+12=-9 equation: 



3v+12=-9

We move all terms to the left:

3v+12-(-9)=0

We add all the numbers together, and all the variables

3v+21=0

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

3v=-21

v=-21/3

v=-7

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