The nine letters A through I have the integer values 1 through 9, subject to the equations below.

Can you determine the unique integer value of each letter?

        A + B = 9         B + C = 10
        C + D = 9         D + E = 10
        E + F = 9         F + G = 10
        G + H = 9         H + I = 10

            Send your solution by the end of the month to: David Pleacher