21b-88=80

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Solution for 21b-88=80 equation: 



21b-88=80

We move all terms to the left:

21b-88-(80)=0

We add all the numbers together, and all the variables

21b-168=0

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

21b=168

b=168/21

b=8

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