Thanks Sunsyster's familly for this riddle
Add 1 single curved line whereever you think it's suitable in this equation, to make the equality true!
(two solutions are possible)
Which are these two solutions?
Congratulations Kayser on solution of the 11/13/2006 but don't look at it, it's always better to find oneself...
If you want to see the (false) solutions which were sent to me.