solving a distance, rate, time problem using a system of linear equations

Question

Flying against the wind, an airplane travels 5400 kilometers in 9 hours. Flying with the wind, the same plane travels 2460 kilometers in 3 hours. What is the rate of the plane in still air and what is the rate of the wind?

Answer 1

5400 = 9(p + w)

2460 = 3(p - w)

Can you solve for either p or w and answer?