20-9v+12v=-20-2v

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Solution for 20-9v+12v=-20-2v equation: 



20-9v+12v=-20-2v

We move all terms to the left:

20-9v+12v-(-20-2v)=0

We add all the numbers together, and all the variables

-9v+12v-(-2v-20)+20=0

We add all the numbers together, and all the variables

3v-(-2v-20)+20=0

We get rid of parentheses

3v+2v+20+20=0

We add all the numbers together, and all the variables

5v+40=0

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

5v=-40

v=-40/5

v=-8

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