7(v-4)=21

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Solution for 7(v-4)=21 equation: 



7(v-4)=21

We move all terms to the left:

7(v-4)-(21)=0

We multiply parentheses

7v-28-21=0

We add all the numbers together, and all the variables

7v-49=0

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

7v=49

v=49/7

v=7

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