3a/a=12

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Solution for 3a/a=12 equation: 



3a/a=12

We move all terms to the left:

3a/a-(12)=0



Domain of the equation: a!=0

a∈R



We multiply all the terms by the denominator


3a-12*a=0

We add all the numbers together, and all the variables

-9a=0

a=0/-9

a=0

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