-1=4(v+5)-7v

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Solution for -1=4(v+5)-7v equation: 



-1=4(v+5)-7v

We move all terms to the left:

-1-(4(v+5)-7v)=0



We calculate terms in parentheses: -(4(v+5)-7v), so:

4(v+5)-7v

We add all the numbers together, and all the variables

-7v+4(v+5)

We multiply parentheses

-7v+4v+20

We add all the numbers together, and all the variables

-3v+20

Back to the equation:

-(-3v+20)



We get rid of parentheses

3v-20-1=0

We add all the numbers together, and all the variables

3v-21=0

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

3v=21

v=21/3

v=7

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