12/a=3

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Solution for 12/a=3 equation: 



12/a=3

We move all terms to the left:

12/a-(3)=0



Domain of the equation: a!=0

a∈R



We multiply all the terms by the denominator


-3*a+12=0

We add all the numbers together, and all the variables

-3a+12=0

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

-3a=-12

a=-12/-3

a=+4

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