7v-31=9v-80

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Solution for 7v-31=9v-80 equation: 



7v-31=9v-80

We move all terms to the left:

7v-31-(9v-80)=0

We get rid of parentheses

7v-9v+80-31=0

We add all the numbers together, and all the variables

-2v+49=0

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

-2v=-49

v=-49/-2

v=24+1/2

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