Congrats to freaky frog, Lobstergirl and boxerbailey on FTF!
If you aren't familiar with this kind of puzzle, you may want to try solving GC61BVX: (NSML02: a Micro Logic Tutorial) first. And for more practice on an easy one, try GC65G5M (NSML08: An after-dark micro logic).
You can get the coordinates by solving the following: The nine letters (A, B, C, D, E, F, G, H, J) represent the digits from 1 to 9. No two letters are equal. "G*A" represents multiplication and "GA" represents a two-digit number. So if G=7 and A=3, then GA=73 and G*A=21.
H * J = CF
B * F * G = C
A + B = J
H - J = C - D
The geocache is hidden at N 45 00.X, W 064 35.Y, where ....
X = FGH - GGD and Y = CJE - BCA
