2(b+10)-b=9

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Solution for 2(b+10)-b=9 equation: 



2(b+10)-b=9

We move all terms to the left:

2(b+10)-b-(9)=0

We add all the numbers together, and all the variables

-1b+2(b+10)-9=0

We multiply parentheses

-1b+2b+20-9=0

We add all the numbers together, and all the variables

b+11=0

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

b=-11

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