The integral form of the momentum equation is solved by use of a combined law of the wall and wake for the velocity profile appropriate to a transpired turbulent boundary layer. This gives a nonlinear ordinary differential equation which is solved numerically to predict the skin friction coefficient, C-f, variation with distance, as well as integral thicknesses, for both constant blowing fraction, F, and for F variable with x along the surface. Predicted skin friction coefficients are compared to experimental data for both blowing and suction in both zero and nonzero pressure gradients. Predictions compare well with the experimental values.