In each of Problems 23-30, a second-order differential equation and its general solution y(x) are given. Determine the constants A and B so as to find a solution of the differential equation that satisfies the given initial conditions involving y (0) and y' (0).

6y" - 5y' + y = 0, y(x) = Ae^x/2 + Be^x/3, y(0) = 7, y'(0) = 11