7v-1=-9+9v

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Solution for 7v-1=-9+9v equation: 



7v-1=-9+9v

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7v-9v+9-1=0

We add all the numbers together, and all the variables

-2v+8=0

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

-2v=-8

v=-8/-2

v=+4

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