7v-100=4(5-2v)

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Solution for 7v-100=4(5-2v) equation: 



7v-100=4(5-2v)

We move all terms to the left:

7v-100-(4(5-2v))=0

We add all the numbers together, and all the variables

7v-(4(-2v+5))-100=0



We calculate terms in parentheses: -(4(-2v+5)), so:

4(-2v+5)

We multiply parentheses

-8v+20

Back to the equation:

-(-8v+20)



We get rid of parentheses

7v+8v-20-100=0

We add all the numbers together, and all the variables

15v-120=0

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

15v=120

v=120/15

v=8

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