3v+1=7v-20

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Solution for 3v+1=7v-20 equation: 



3v+1=7v-20

We move all terms to the left:

3v+1-(7v-20)=0

We get rid of parentheses

3v-7v+20+1=0

We add all the numbers together, and all the variables

-4v+21=0

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

-4v=-21

v=-21/-4

v=5+1/4

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