12/15=4/a

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Solution for 12/15=4/a equation: 



12/15=4/a

We move all terms to the left:

12/15-(4/a)=0



Domain of the equation: a)!=0

a!=0/1

a!=0

a∈R



We add all the numbers together, and all the variables

-(+4/a)+12/15=0

We get rid of parentheses

-4/a+12/15=0

We calculate fractions

There is no solution for this equation

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