*25. a. Write the mesh equations for the network of Fig. 116 using the general approach. b. Using determinants, calculate the mesh currents. c. Using the results of part (b), find the current through each source. 7.5 W R 9. 3 V R. 2.2k 6.82 18 V R33.3k 3.3 k2 FIG. 116 Problems 25 and 36