7v-v=30

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Solution for 7v-v=30 equation: 



7v-v=30

We move all terms to the left:

7v-v-(30)=0

We add all the numbers together, and all the variables

6v-30=0

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

6v=30

v=30/6

v=5

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