2b+3+3=21

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Solution for 2b+3+3=21 equation: 



2b+3+3=21

We move all terms to the left:

2b+3+3-(21)=0

We add all the numbers together, and all the variables

2b-15=0

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

2b=15

b=15/2

b=7+1/2

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