9v+7=77-v

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Solution for 9v+7=77-v equation: 



9v+7=77-v

We move all terms to the left:

9v+7-(77-v)=0

We add all the numbers together, and all the variables

9v-(-1v+77)+7=0

We get rid of parentheses

9v+1v-77+7=0

We add all the numbers together, and all the variables

10v-70=0

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

10v=70

v=70/10

v=7

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