The Attempt at a Solution
My first attempt was to figure out what region the PMOS is operating in so that I could decide what equation to use - so I tried to find Vgs. Vgs = Vg - Vs. Vs is of course just Vdd but for Vg I did a KVL loop as below:
My only question is. Now what do I do? How do I get rid of the I_2 in my equations for Vg??