how do i find the interest expense for the adjusting journal entry

On January 1, 2015, Stuart Inc. bought a piece of machinery for $250,000 by paying $75,000 at purchase and signing a 5 year note carrying a 12% annual interest rate for the balance owed. Principal and interest payments (equal payments) will be made every year at the end of each year. What is the annual payment required? Provide the Journal Entries required for the purchase on January 1, 2015 and for the first 2 payments