21/7b=31/2

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Solution for 21/7b=31/2 equation: 



21/7b=31/2

We move all terms to the left:

21/7b-(31/2)=0



Domain of the equation: 7b!=0

b!=0/7

b!=0

b∈R



We add all the numbers together, and all the variables

21/7b-(+31/2)=0

We get rid of parentheses

21/7b-31/2=0

We calculate fractions

There is no solution for this equation

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