3(v-4)-6v=-21

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Solution for 3(v-4)-6v=-21 equation: 



3(v-4)-6v=-21

We move all terms to the left:

3(v-4)-6v-(-21)=0

We add all the numbers together, and all the variables

-6v+3(v-4)+21=0

We multiply parentheses

-6v+3v-12+21=0

We add all the numbers together, and all the variables

-3v+9=0

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

-3v=-9

v=-9/-3

v=+3

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