Question

ABC + DEF + GHI = JJJ
A to I are all different numbers/digits.
What is J? (no leading zeros allowed)

Answer 1

You know the magic word.

Answer 2

pwease?

Answer 3

Nope. It's a song actually.

Answer 4

idk :/ :3

Answer 5

What a shame.

Answer 6

jigglypuff?
brb me has dinner

Answer 7

You're not the real jigglypuff if you don't know the song.

Answer 8

hi I'm back ^.^
and I know I'm not a real jigglypuff >,<
https://www.youtube.com/watch?v=sUKPdN5nSuY

Answer 9

if I have the time, I'll record me playing the song on flute or ocarina :P

Answer 10

To start, note that:
C+F+I >= J
and A+D+G <= J
and so on.
A good way to start is to let C+F+I = X
B+E+H = Y
A+D+G = Z.

So you have X- (Xmod10) = J
X-J+Y - (X-J+Y)mod10 = J
You see the pattern?