3v-1=v+7

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



3v-1=v+7

We move all terms to the left:

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

We get rid of parentheses

3v-v-7-1=0

We add all the numbers together, and all the variables

2v-8=0

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

2v=8

v=8/2

v=4

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