21+5v=-v-(2v-7)

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Solution for 21+5v=-v-(2v-7) equation: 



21+5v=-v-(2v-7)

We move all terms to the left:

21+5v-(-v-(2v-7))=0



We calculate terms in parentheses: -(-v-(2v-7)), so:

-v-(2v-7)

We add all the numbers together, and all the variables

-1v-(2v-7)

We get rid of parentheses

-1v-2v+7

We add all the numbers together, and all the variables

-3v+7

Back to the equation:

-(-3v+7)



We get rid of parentheses

5v+3v-7+21=0

We add all the numbers together, and all the variables

8v+14=0

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

8v=-14

v=-14/8

v=-1+3/4

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