1. The problem statement, all variables and given/known data Sorry for the quality of the image. This is the best I can come up with with my cellphone. What is the current through the 10 ohms resistor? Is the current from left to right or right to left? 2. Relevant equations Kirchhoff's loop law Kirchhoff's junction law 3. The attempt at a solution 1) I1 = I2 + I3 ==> I3 = I1 -I2 2) -5(I1) + 12V - 10(I2) + 3V = 0 15V = 10(I2) + 5(I1) I1 = (15V - 10(I2))/5 3) -5(I3) + 9V + 3V + 10(I2) = 0 -5(I1-I2) + 12V + 10 (I2) = 0 12V = -15 (I2) + 5 (I1) = -15 (I2) + 15V - 10 (I2) -3V = -25 (I2) ===> I2 = 0.12 A, from right to left. This answer is incorrect. The correct answer is 0.36 A. Can someone please give me a hint as to what I'm doing wrong ?