20=2v-4

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Solution for 20=2v-4 equation: 



20=2v-4

We move all terms to the left:

20-(2v-4)=0

We get rid of parentheses

-2v+4+20=0

We add all the numbers together, and all the variables

-2v+24=0

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

-2v=-24

v=-24/-2

v=+12

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