V=IR, Nodal Analysis
The Attempt at a Solution
1 and 2 in the diagram are the nodal equations. Considering that the left node is V1 and that the right node is V2. I don't know how to get from the nodal equations to step 3. I know that you go from step 3 to step 4 using V=IR.
I tried solving the nodal equations to get to step 3...
Can someone please work it out for me? Thank you