I'm trying to get V2. When looking at the solution, I see that for the node V3, this is what they have:
$$\frac{V_3}{100}+\frac{V_3-V_4}{200}=0.15A$$
I'm wondering why they're not considering the 200ohm resistor to the left of V3? Initially, I thought the node equation would look like this:
$$\frac{V_3}{100}+\frac{V_3-V_4}{200}+\frac{V_3-V_2}{200}=0.15A$$
Thanks.