Final answer:
No, it is not possible to make an entry that changes only one account due to the requirement of the double-entry system in accounting, which needs at least two entries for every transaction to maintain balance.
Step-by-step explanation:
The direct answer to the question is No. In accounting, an entry that changes only one account is not possible because the fundamental rule of accounting is the double-entry system. This system requires that every transaction must be recorded with at least two entries: a debit and a credit. These entries must balance, meaning the total debits must equal total credits. For example, if a business receives cash from a sale, it would record a debit to increase the Cash account and a credit to increase the Sales Revenue account.