18=-9(v+1)

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Solution for 18=-9(v+1) equation: 



18=-9(v+1)

We move all terms to the left:

18-(-9(v+1))=0



We calculate terms in parentheses: -(-9(v+1)), so:

-9(v+1)

We multiply parentheses

-9v-9

Back to the equation:

-(-9v-9)



We get rid of parentheses

9v+9+18=0

We add all the numbers together, and all the variables

9v+27=0

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

9v=-27

v=-27/9

v=-3

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