Need help with a question guys, any help will be most appreciated.

The pressure, p, and volume, V, of a gas undergoing a polytropic process are related by the equation:

p1V1n = p2V2n

where n is the polytropic index.

If p1V1/ T1 = p2V2/ T2

determine and expression for p1 in terms of p2 , T1, T2 and n

It has got me a bit stumped guys so any help would be most appreciated.

Thanks