-315=-5(-1+8v)

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Solution for -315=-5(-1+8v) equation: 



-315=-5(-1+8v)

We move all terms to the left:

-315-(-5(-1+8v))=0

We add all the numbers together, and all the variables

-(-5(8v-1))-315=0



We calculate terms in parentheses: -(-5(8v-1)), so:

-5(8v-1)

We multiply parentheses

-40v+5

Back to the equation:

-(-40v+5)



We get rid of parentheses

40v-5-315=0

We add all the numbers together, and all the variables

40v-320=0

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

40v=320

v=320/40

v=8

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