Presented below are selected transactions at Vaughn Company for 2017. Jan. 1 Retired a piece of machinery that was purchased on January 1, 2007. The machine cost 60,640 on that date. It had useful life of 10 years with no residual value. June 30 Sold a computer that was purchased on January 1, 2014. The computer cost 35,740. It had a useful life of 5 years with no residual value. The computer was sold for 15,860. Dec. 31 Discarded a delivery truck that was purchased on January 1, 2013. The truck cost 35,350. It was depreciated based on a 6-year useful life with a 2,290 residual value. Journalize all entries required on the above dates, including entries to update depreciation, where applicable, on assets disposed of. Vaughn Company uses straight-line depreciation. (Assume depreciation is up to date as of December 31, 2016.) (Credit account titles are automatically indented when amount is entered. Do not indent manually.) Date Account Titles and Explanation Debit Credit (To record depreciation) June. 30 (To record the sale of equipment) (To record depreciation) Dec. 31 (To record the discarding of equipment)