2.50+5b=21

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Solution for 2.50+5b=21 equation: 



2.50+5b=21

We move all terms to the left:

2.50+5b-(21)=0

We add all the numbers together, and all the variables

5b-18.5=0

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

5b=18.5

b=18.5/5

b=3+2.3333333333333/3.3333333333333

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