8v+-21=2v-9

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Solution for 8v+-21=2v-9 equation: 



8v+-21=2v-9

We move all terms to the left:

8v+-21-(2v-9)=0

We add all the numbers together, and all the variables

8v-(2v-9)=0

We get rid of parentheses

8v-2v+9=0

We add all the numbers together, and all the variables

6v+9=0

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

6v=-9

v=-9/6

v=-1+1/2

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