21=1/3b(7)

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Solution for 21=1/3b(7) equation: 



21=1/3b(7)

We move all terms to the left:

21-(1/3b(7))=0



Domain of the equation: 3b7)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

-(+1/3b7)+21=0

We get rid of parentheses

-1/3b7+21=0

We multiply all the terms by the denominator


21*3b7-1=0

Wy multiply elements

63b^7-1=0

We do not support ebpression: b^7

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