1. The problem statement, all variables and given/known data I need to get 7 equations to make a 7x7 matrix in order to solve it. I have 4 of them, but I'm not sure how to get the voltages equations. 2. Relevant equations 3. The attempt at a solution I have got four equations so far. One is simply using KCL, I1 = I2 + I3 + I4. The other three are from using KVL and Ohm's Law to get: 1. V0 - VR1 - VR4 = 0 2. VR4 - VR2 - VR5 = 0 3.VR5 - VR3 - VR6 = 0 Applying Ohm's Law: 1. V0 - R1i1 - R4i2 = 0 2. R4i2 - R2(i3 + i4) - R5i3 = 0 3. R5i3 - R3i4 - R6i4 = 0 How do I get 3 equations for the unknown voltages?