a. Given: When solving circuits, you will learn to develop a system of equations that governs the circuit's node voltages. Such a system of equations might look like the following: V V - V + 4,000 8,000 V - V 8,000 + V 10 15,000 V 20,000 0 0 Find: Solve for V and V. You may use standard algebra techniques, but you may also use computer resourses such as Matlab or Mathmatica to solve the system of equations. If you use Matlab to solve the system, include a copy of your code. Solution: