12v-6v-4v+5v-1=20

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Solution for 12v-6v-4v+5v-1=20 equation: 



12v-6v-4v+5v-1=20

We move all terms to the left:

12v-6v-4v+5v-1-(20)=0

We add all the numbers together, and all the variables

7v-21=0

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

7v=21

v=21/7

v=3

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