b=221-b

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Solution for b=221-b equation: 



b=221-b

We move all terms to the left:

b-(221-b)=0

We add all the numbers together, and all the variables

b-(-1b+221)=0

We get rid of parentheses

b+1b-221=0

We add all the numbers together, and all the variables

2b-221=0

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

2b=221

b=221/2

b=110+1/2

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