6: A machine is valued at 100,000 TL by the seller. The buyer of the machine estimates the useful life of the machine to be 12 years. At the end of 12 years, it is expected that the machine will be sold for 90,000 TL. The machine will cause an annual cost of 6.000 TL during its 12-year useful life, but it will also provide an annual saving of 15.000 TL. Since the interest rate is expected to be 9%, how much should the buyer pay for the machine whose price is determined as 100,000 TL by the seller? (TL=Turkish money)