49=-7(-3+v)

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Solution for 49=-7(-3+v) equation: 



49=-7(-3+v)

We move all terms to the left:

49-(-7(-3+v))=0

We add all the numbers together, and all the variables

-(-7(v-3))+49=0



We calculate terms in parentheses: -(-7(v-3)), so:

-7(v-3)

We multiply parentheses

-7v+21

Back to the equation:

-(-7v+21)



We get rid of parentheses

7v-21+49=0

We add all the numbers together, and all the variables

7v+28=0

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

7v=-28

v=-28/7

v=-4

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