In the circuit given below, V = 150 V. Find the node voltages v1 , v2, and v3.

I know that we have a supernode however, I don't understand how to calculate v1 when it has a current source right below it.

In the circuit given below V 150 V Find the node voltages v1 v2 and v3 I know that we have a supernode however I dont understand how to calculate v1 when it has class=