This week, we will relax a little bit with a quite easy problem AQQ273:

Good luck and try to be among the first ones!
1/2.
Indeed: a/a = 2a, implies a is not 0 (we can't divide by 0), leaving: a = 2a^2, or 1=2a.
Bingo vanderghast , you get it, congratulations (too easy for you...)!
Bingo vanderghast , you get it, congratulations (too easy for you...)!