-10(b-8)-1=9

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Solution for -10(b-8)-1=9 equation: 



-10(b-8)-1=9

We move all terms to the left:

-10(b-8)-1-(9)=0

We add all the numbers together, and all the variables

-10(b-8)-10=0

We multiply parentheses

-10b+80-10=0

We add all the numbers together, and all the variables

-10b+70=0

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

-10b=-70

b=-70/-10

b=+7

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