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20b+1.25=117
We move all terms to the left:
20b+1.25-(117)=0
We add all the numbers together, and all the variables
20b-115.75=0
We move all terms containing b to the left, all other terms to the right
20b=115.75
b=115.75/20
b=5+2.73913043478/3.47826086957
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