12v+8=138-v

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Solution for 12v+8=138-v equation: 



12v+8=138-v

We move all terms to the left:

12v+8-(138-v)=0

We add all the numbers together, and all the variables

12v-(-1v+138)+8=0

We get rid of parentheses

12v+1v-138+8=0

We add all the numbers together, and all the variables

13v-130=0

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

13v=130

v=130/13

v=10

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