7(8-b)=91

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Solution for 7(8-b)=91 equation: 



7(8-b)=91

We move all terms to the left:

7(8-b)-(91)=0

We add all the numbers together, and all the variables

7(-1b+8)-91=0

We multiply parentheses

-7b+56-91=0

We add all the numbers together, and all the variables

-7b-35=0

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

-7b=35

b=35/-7

b=-5

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