Problem 3.50: Solve the problem first using the node-voltage method and find Ix. Then use source-superposition and answer parts (a)-(f).Note that you are asked to solve each problem twice, using two different methods. This will give you a chance to check your work and also get more practice with node-voltage, mesh-current, and other circuit analysis methods.
Problems 3.51, 3.52, 3.53, and 3.54: Use both "Method 1" and "Method 2" to find the Thevenin equivalent circuit, and show all of the steps in your analysis. Then use your equivalent circuit to answer the questions in Problems 3.53(b) and 3.54.
Please clearly show all of the steps used in your analysis. Include circuits that are labeled with the voltages and currents used in your solution. (Recall that a voltage is fully defined when its polarity is indicated, and a current is fully defined when its direction is indicated.) If you get a result using your calculator, clearly show the equations that were solved on your calculator.