Ciao! (I'm not Italian, but trying xD)
I really enjoy your idea with free educational resource, it's truly amazing!
As for equation it was something like X + Y - 5 = 6 or sth like that. So I did try several situations: mostly setting Y with the same value as -5 to make them reduce to 0 and then X to 6. So for instance 6 - 5 + 5 = 6
Maybe in Poland we write "power" in a different way too, have no idea :P If you ever want a multicultural version, you can study how this thing is called in other cultures :P and make a choice in a menu, so that people can choose the one they want :P
I'm glad you could have some dopamine from me, it's good to smile a lot in life :)