3v+21=9(v+9)

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Solution for 3v+21=9(v+9) equation: 



3v+21=9(v+9)

We move all terms to the left:

3v+21-(9(v+9))=0



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

9(v+9)

We multiply parentheses

9v+81

Back to the equation:

-(9v+81)



We get rid of parentheses

3v-9v-81+21=0

We add all the numbers together, and all the variables

-6v-60=0

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

-6v=60

v=60/-6

v=-10

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