Verified answer

Lol, maybe he means that solving his Math Problem is a myth. But here's the answer:

Let x = 12

Substitute 12 to all x so:

(12-9)/√12-3 = √12+a

3/3 = √12+a

1 = √12+a

Take the square root of everything, so:

√1 = √√12+a

1 = 12 + a

Transpose 12 to the other side -> 1-12 = a -> a = -11

So the answer is a = -11

Reality has never been defined therefore no real number can ever really be found.

And what does YOUR math problem have to do with Mythology???????????