Another theorem

I created another theorem . If u wanna ask something leave a comment.


If x is a number with N digits where N>1 then the sum of ' the difference between x and its mirror reverse' and its mirror reverse will be a multiple of 9.

Ex.647
746 - 647 = 99 or 099
99 + 99 = 198
or 99 + 990 = 1089



ADIEU !!!!!

FOWL