2(v-3)-7v=-21

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Solution for 2(v-3)-7v=-21 equation: 



2(v-3)-7v=-21

We move all terms to the left:

2(v-3)-7v-(-21)=0

We add all the numbers together, and all the variables

-7v+2(v-3)+21=0

We multiply parentheses

-7v+2v-6+21=0

We add all the numbers together, and all the variables

-5v+15=0

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

-5v=-15

v=-15/-5

v=+3

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