9v=12+5v

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Solution for 9v=12+5v equation: 



9v=12+5v

We move all terms to the left:

9v-(12+5v)=0

We add all the numbers together, and all the variables

9v-(5v+12)=0

We get rid of parentheses

9v-5v-12=0

We add all the numbers together, and all the variables

4v-12=0

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

4v=12

v=12/4

v=3

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