No two of those numbers add to 17.
adding of two numbers for example 5+8=13
The numbers are 13 and 12
(12/13)x = 20x = 20 / (12/13) = (20 x 13) / 12 = 21 and 2/3
12 & 13
12 and 13
No.
Two consecutive numbers
adding of two numbers for example 5+8=13
The numbers are 13 and 12
12 and 13
(12/13)x = 20x = 20 / (12/13) = (20 x 13) / 12 = 21 and 2/3
-1
12 and 1
-1
12 & 13
12 and 13
-287