15=v+7

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Solution for 15=v+7 equation: 



15=v+7

We move all terms to the left:

15-(v+7)=0

We get rid of parentheses

-v-7+15=0

We add all the numbers together, and all the variables

-1v+8=0

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

-v=-8

v=-8/-1

v=+8

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