(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[PLAIN]http://img844.imageshack.us/img844/8508/circuit.png [Broken]

2. Relevant equations

KCL set ups

3. The attempt at a solution

I am having trouble setting up the KCL equations

The 30V voltage source on the left with the resistor is messing me up, how do I incorporate that?

Do I just do 30/15 and assume a 2A current source is going into node A?

Here are my equations:

VD = reference node = 0 V

KCL @ Node B

(VB-VA)/25 + (VB-VC)/50 - 1 + 4 = 0

KCL @ Node C

(VC-VD)/50 + (VC-VB)/50 + 1 = 0

KCL @ Node A?

(VA-VB)/25 + (VA-VD)/31.25 - 4 + ?? = 0

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# Homework Help: Nodal analysis, setting up the equations

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