-140=7(1-7v)

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Solution for -140=7(1-7v) equation: 



-140=7(1-7v)

We move all terms to the left:

-140-(7(1-7v))=0

We add all the numbers together, and all the variables

-(7(-7v+1))-140=0



We calculate terms in parentheses: -(7(-7v+1)), so:

7(-7v+1)

We multiply parentheses

-49v+7

Back to the equation:

-(-49v+7)



We get rid of parentheses

49v-7-140=0

We add all the numbers together, and all the variables

49v-147=0

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

49v=147

v=147/49

v=3

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