9+7v=-4(1-5v)

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Solution for 9+7v=-4(1-5v) equation: 



9+7v=-4(1-5v)

We move all terms to the left:

9+7v-(-4(1-5v))=0

We add all the numbers together, and all the variables

7v-(-4(-5v+1))+9=0



We calculate terms in parentheses: -(-4(-5v+1)), so:

-4(-5v+1)

We multiply parentheses

20v-4

Back to the equation:

-(20v-4)



We get rid of parentheses

7v-20v+4+9=0

We add all the numbers together, and all the variables

-13v+13=0

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

-13v=-13

v=-13/-13

v=1

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