8=7-v

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Solution for 8=7-v equation: 



8=7-v

We move all terms to the left:

8-(7-v)=0

We add all the numbers together, and all the variables

-(-1v+7)+8=0

We get rid of parentheses

1v-7+8=0

We add all the numbers together, and all the variables

v+1=0

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

v=-1

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