Determine the effect of currents on all areas of the circuit, if E1 = 10, E2 = 12, R1 = 2 Ohms, R2 = 2 ohms, R3 = 8 ohms, R4 = 4 ohms. The internal resistance of the current sources of neglect.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.