9b-1=8b-9

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Solution for 9b-1=8b-9 equation: 



9b-1=8b-9

We move all terms to the left:

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

We get rid of parentheses

9b-8b+9-1=0

We add all the numbers together, and all the variables

b+8=0

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

b=-8

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