Answer: Please see explanation column
Step-by-step explanation:
Journal to record uncollectible accounts using the direct write-off method
Date Accounts Debit Credit
 Dec 31, 2015 Bad debts expense $1,200
 Accounts Receivable -Acme Inc $1,200
 
Compound Journal entry to record recovery using Direct write off method for the events
Date Accounts Debit Credit
Sep 15, 2016 Acct Receivable —Acme, Inc. $600
Bad Debt Expense $600
Cash $600
Account Receivable—Acme, Inc. $600