Double posting because I figured it out:
I1= 72/83 A
I2= -51/83 A
I3= -123/83 A
Using
I2=I1+I3
12+4I3-7I1=0
12-9-5I2-7I1=0
Setting them up for a matrix:
I1 + I2 + I3 = Voltage
+1 -1 +1 =0
-7 +0 +4 =-12
-7 -5 +0 =-3
Letting the calculator do the rest for...
OK, I redid it with the new formula and I got
I1=0.25
I2=0.25
I3=-2.5625
Clearly this does not fit the initial equation I2=I1+I3
It's strange though because those are the same values I got for I1 and I2 for part A) where it asked for the currents with the switch open...
Homework Statement
Find I_1, I_2 and I_3 if the switch, k, is closed using Kirchhoff's Rules.
Homework Equations
V=IRThe Attempt at a Solution
I've had multiple attempts at this and this one is the one that came closest to a solution.
Setting up 3 equations:
1) I_1 = 1_2 + I_3 =>...