4=8v-20

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Solution for 4=8v-20 equation: 



4=8v-20

We move all terms to the left:

4-(8v-20)=0

We get rid of parentheses

-8v+20+4=0

We add all the numbers together, and all the variables

-8v+24=0

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

-8v=-24

v=-24/-8

v=+3

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