Cache is NOT at posted coordinates
Solve puzzle below to find final location
AB x C = DE + FG = HI
NO / P = QR + ST = UV
Solve the two equations above where 'A' to 'I' and 'N' to 'V' are
the numbers from 1 to 9. No number should be repeated and A < B and N < O.
N(CP° IN.DQU)
W(HV° RT.BNF)
You can validate your puzzle solution with certitude.