Using only the digits 0-9, but not 3 or 5, solve for each letter:
GRAPE - PLUM = APPLE
You can only use one digit for each letter.
(In reply to
re(2): A solution - THE solution by fwaff)
well fwaff......i think i have mentioned that i am working on the problem........and not yet finished doing so and so i cannot say for sure whether the other possibilities yield invalid solutions........neways........the approach is the same but i am not as quick as you are..........so please give me some time and i'll have my solution out here.......may be it is unique.......let's see..........