7(1+7v)=-91

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Solution for 7(1+7v)=-91 equation: 



7(1+7v)=-91

We move all terms to the left:

7(1+7v)-(-91)=0

We add all the numbers together, and all the variables

7(7v+1)-(-91)=0

We add all the numbers together, and all the variables

7(7v+1)+91=0

We multiply parentheses

49v+7+91=0

We add all the numbers together, and all the variables

49v+98=0

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

49v=-98

v=-98/49

v=-2

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