4b-2=21

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Solution for 4b-2=21 equation: 



4b-2=21

We move all terms to the left:

4b-2-(21)=0

We add all the numbers together, and all the variables

4b-23=0

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

4b=23

b=23/4

b=5+3/4

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