> Instead of using negative numbers, Accounts have normal balance: normal credit balance literally means that they are normal when its associated entries with t

> Instead of using negative numbers, Accounts have normal balance: normal credit balance literally means that they are normal when its associated entries with type credit have a total amount that outweighs its associated entries with type debit. The reverse is true for normal debit balance. I didn't understand this part, can someone give examples of good and bad approaches for both credit and debit accounts?