In this paper, the effects of the suction/injection and radiation on the MHD Marangoni convection boundary layer heat and mass transfer with Joule heating and viscous dissipation have been analyzed.  By means of Laplace transform, an analysis has been introduced to conduct the exact solutions of the present system of nonlinear differential equations. On comparing the present exact results with the approximate ones in literature by using the Runge-Kutta method/shooting technique in the absence of the suction/injection parameter, great differences have been detected. Therefore, the correctness of such incorrect previous results was the main task of this investigation. Moreover, the effects of the suction/injection and other impeding parameters on the velocity, the temperature, and the concentration profiles have been displayed in graphs and analyzed.

radiation, Joule heating, Marangoni convection, suction/injection, flat surface, exact solution.