Prepare the Journal Entries to Record the Following Transactions for Ogleby

Prepare the journal entries to record the following transactions for Ogleby Company which has a calendar year end and uses the straight-line method of depreciation.
a) On September 30, 2018, the company exchanged old delivery equipment and $36,000 for new delivery equipment. The old delivery equipment was purchased on January 1, 2016, for $126,000 and was estimated to have an $18,000 salvage value at the end of its 5-year life. Depreciation on the delivery equipment has been recorded through December 31, 2017. It is estimated that the fair value of the old delivery equipment is $54,000 on September 30, 2018.
(b) On June 30, 2018, the company exchanged old office equipment and $40,000 for new office equipment. The old office equipment originally cost $80,000 and had accumulated depreciation to the date of disposal of $35,000. It is estimated that the fair value of the old office equipment on June 30 was $60,000. The transaction has commercial substance.