The cache is not at the above location!
To find the cache you'll need to solve the fifteen simple sums below. Each letter A to Z represents a number from 1 to 26 - all you need to do is work out which number corresponds to which letter.
A + B = D
B * K = C
F * U = D
F * K = L
H + I = J
Q * Q = R
R + S = T
T = K * G
U + V = W
F + K = Q
W + H = O
D + E = N + P
V * W = X + Y
O + V = N
M + I = Y
The cache is located at:
North:49°36. V*X*A-U
East: 6°07. M*Y*F+G+W+J