1. Find voltages Va, Vp, and V, and currents i, iz, iz, i, and is. Use substitution method. (60 points) 2.2kn 1800 iz 3600 is 460n is 1kn 2. Find I1, 12, 13, and V.. Use Cramer's Rule. (40 points) 50 10 120 20v 12v 30 80