-40=-2(9+v)

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Solution for -40=-2(9+v) equation: 



-40=-2(9+v)

We move all terms to the left:

-40-(-2(9+v))=0

We add all the numbers together, and all the variables

-(-2(v+9))-40=0



We calculate terms in parentheses: -(-2(v+9)), so:

-2(v+9)

We multiply parentheses

-2v-18

Back to the equation:

-(-2v-18)



We get rid of parentheses

2v+18-40=0

We add all the numbers together, and all the variables

2v-22=0

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

2v=22

v=22/2

v=11

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