7(1+2v)=21+7v

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Solution for 7(1+2v)=21+7v equation: 



7(1+2v)=21+7v

We move all terms to the left:

7(1+2v)-(21+7v)=0

We add all the numbers together, and all the variables

7(2v+1)-(7v+21)=0

We multiply parentheses

14v-(7v+21)+7=0

We get rid of parentheses

14v-7v-21+7=0

We add all the numbers together, and all the variables

7v-14=0

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

7v=14

v=14/7

v=2

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