4v=v+81

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Solution for 4v=v+81 equation: 



4v=v+81

We move all terms to the left:

4v-(v+81)=0

We get rid of parentheses

4v-v-81=0

We add all the numbers together, and all the variables

3v-81=0

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

3v=81

v=81/3

v=27

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