please help, idk what i'm doing wrong

Recording Asset Exchanges Miley Corp. exchanges old equipment that cost $10,000 (accumulated depreciation of $4,500) for new equipment. The fair value of the new equipment is $8,000. The fair value of the old equipment cannot be reliably estimated. Prepare the entry to record acquisition of the new equipment under each of the following separate cases. a. Transaction has commercial substance. No cash is involved. b. Transaction has commercial substance. Cash of $3,000 is paid by Miley. c. Transaction lacks commercial substance. No cash is involved. d. Transaction lacks commercial substance. Cash of $1,000 is paid by Miley. e. Transaction lacks commercial substance Cash of $2,000 is received by Miley. Note: If a line in a journal entry isn't required for a transaction, select "N/A" as the account name and leave the Dr. and Cr. answers blank (zero) Exchange has commercial substance Exchange lacks commercial substance Exchange has commercial substance Exchange lacks commercial substance C. Cr. 0 Account Name Equipment (new) Accumulated Depreciation Equipment (old) N/A > Dr. 5,500 4,500 0 0 0 10,000 0 d. Cr. Account Name Equipment (new) Accumulated Depreciation Cash Equipment (old) Dr. 6,500 4,500 0 0 0 > > 1,000 10,000 0 e. Cr. O Account Name Cash Equipment (new) Accumulated Depreciation Gain on Asset Exchange Equipment (old) Dr. 2,000 3,500 x 4,500 0 0 0 0 400 x 10,000 Check