3b+20.45+2.2b=102.5

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Solution for 3b+20.45+2.2b=102.5 equation: 



3b+20.45+2.2b=102.5

We move all terms to the left:

3b+20.45+2.2b-(102.5)=0

We add all the numbers together, and all the variables

5.2b-82.05=0

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

5.2b=82.05

b=82.05/5.2

b=15+3.8571428571429/4.952380952381

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