I am going through my notes and I don't understand the steps that are being taken to get to the solution, any help in figuring this out would be greatly appreciated!
It starts off with two equations
x=\frac{k+θπ}{1+θ^2/Ω}
and
π= \frac{θ}{Ω}(\frac{k+θπ}{1+θ^2/Ω})
then multiply x by...