R4 50 Q Figure 4 - Consider Circuit_1 shown above. Using Kirchhoff s loop and junction laws, provide three equations for the currents 11._ I2, and 13 in terms of the resistors R1, R2, R3, and R4 and the two voltage sources V1 and V2. Note: you do not need to solve the system of equations for 11, [2, and 13, simply write them down for future reference. After you have done that, go to the procedure