7(v+3)=9v+7

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Solution for 7(v+3)=9v+7 equation: 



7(v+3)=9v+7

We move all terms to the left:

7(v+3)-(9v+7)=0

We multiply parentheses

7v-(9v+7)+21=0

We get rid of parentheses

7v-9v-7+21=0

We add all the numbers together, and all the variables

-2v+14=0

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

-2v=-14

v=-14/-2

v=+7

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