On January 1, 2017, Frostburg Company purchased for $68,500, equipment having a service life of six years and an estimated residual value of $4,000. Frostburg has recorded depreciation of the equipment using the straight-line method. On December 31, 2019, before making any annual adjusting entries, the equipment was exchanged for new machinery having a fair value of $35,000. The transaction has commercial substance. Use this information to prepare all General Journal entries (without explanation) required to record the events for December 31, 2019.