1. The problem statement, all variables and given/known data Hello, Although this could be labeled as an EE problem, this is more of an Algebra problem. Anyways, I am having a very hard time solving for the following 4 equations with 4 unknonws. 269.0 = R1*(R2+R3+R4)/(R1+R2+R3+R4) 267.8 = R2*(R1+R3+R4)/(R1+R2+R3+R4) 265.8 = R3*(R1+R2+R4)/(R1+R2+R3+R4) 267.3 = R4*(R1+R2+R3)/(R1+R2+R3+R4) 2. Relevant equations Can I set R2 & R3 = 0 to make it easier to simplify it? 3. The attempt at a solution This is what I was able to narrow it down to: R4=267.3(R1+R2+R3)/(R1+R2+R3-267.3) R3=268.8(R1+R2+R4)/(R1+R2+R4-268.8) R2=267.8(R1+R3+R4)/(R1+R3+R4-267.8) R1=269.0(R2+R3+R4)/(R2+R3+R4-269.0) I don't know what to do from here on now. When I tried replacing R1 into R2, R2 into R3, etc. it just kept getting messier and it didn't lead to anything promising. So I figured I set R2 & R3 = 0 to make it easier, but I don't know if I am allowed to do that. Can someone please lead me to the right direction? Your help is much appreciated, Thank you.