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-29=7v+4(-8v-1)

We move all terms to the left:

-29-(7v+4(-8v-1))=0

We calculate terms in parentheses: -(7v+4(-8v-1)), so:We get rid of parentheses

7v+4(-8v-1)

We multiply parentheses

7v-32v-4

We add all the numbers together, and all the variables

-25v-4

Back to the equation:

-(-25v-4)

25v+4-29=0

We add all the numbers together, and all the variables

25v-25=0

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

25v=25

v=25/25

v=1

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