Hello everyone, this is my first problem dealing with Kirchoffs Rule and I thought I did it right...here is the circuit... http://www.webassign.net/hrw/hrw7_27-40.gif the info is the following: In Figure 27-40, the resistances are R1 = 1 , R2 = 2.2 , and the ideal batteries have emfs E1 = 2.0 V, and E2 = 3 = 3 V. Fig. 27-40 (a) What is the current through each battery? (Take upward to be positive.) battery 1 A battery 2 A battery 3 A (b) What is the potential difference Va - Vb? V I came out with the following 3 equations: E1 + (-R1)(I_1) + R2*I_2 - E2 -R1*I_1; -R2*I_2 + R1*I_3 - E3 + R1*I_3 + E2; I_1 + I_2 + I_3 = 0; When i solve for I_1 = -I_2 -I_3 Where do I plug I_1 into? i tried the first equation and i couldn't solve for any I, and i can't for the 2nd, because there is no I_1, did i do this right? thanks!