B.3n-1=8

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Solution for B.3n-1=8 equation: 



.3B-1=8

We move all terms to the left:

.3B-1-(8)=0

We add all the numbers together, and all the variables

.3B-9=0

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

.3B=9

B=9/.3

B=30

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