Sunland Company purchased an electric wax melter on April 30, 2025, by trading in its old gas model and paying the balance in cash. The following data relate to the purchase. Prepare the journal entries necessary to record this exchange, assuming that the exchange (a) has commercial substance, and (b) lacks commercial substance. Sunland's fiscal year ends on December 31, and depreciation has been recorded through December 31, 2024. (Credit account titles are outomatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the occount titles and enter 0 for the amounts. List all debit entries before credit entries.) (a) Exchange has commercial substance: Depreciation Expense Accumulated Depreciation - Equipment (To record current depreciation.) Accumulated Depreciation - Equipment Equipment Gain on Disposal of Equipment Cash Equipment (b) Exchange lacks commercial substance: Depreciation Expense Accumulated Depreciation - Equipment (To record current depreciation.) Accumulated Depreciation - Equipment Equipment Cash Equipment Gain on Disposal of Equipment (To recordexchance of theseauinment)