7(2b+1)=91

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Solution for 7(2b+1)=91 equation: 



7(2b+1)=91

We move all terms to the left:

7(2b+1)-(91)=0

We multiply parentheses

14b+7-91=0

We add all the numbers together, and all the variables

14b-84=0

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

14b=84

b=84/14

b=6

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