How do i add a deleted account - cash and equivelant ?

I know a way how to see the deleted accounts only in QuickBooks Online (QBO), jenny.

We can filter the Chart of Accounts list to Include inactive and enter the word "Deleted" in the Filter field. From there, we'll only see the inactive accounts. Here's how:
 

1. Go to Accounting on the left side menu.
2. Choose Chart of Accounts.
3. Click the Gear icon.
4. Select Include inactive under Other.
5. In the Filter by name or number field, type Deleted.

To learn more about deleting an account, see the Delete an account on your chart of accounts in the QuickBooks Online article. Just in case you'll need to activate an account, just follow the steps below: 
 

1. Go to Accounting on the left side menu.
2. Select Chart of accounts.
3. Tap the Gear icon above the Action column. Then choose Include inactive.
4. Find the account you want to use again and press Make active.

I've got articles here about managing your Chart of Accounts that will guide you in your future tasks:
 

• Manage default and special accounts in your chart of accounts
• Use account numbers in your chart of accounts
• Import your chart of accounts to QuickBooks Online

Feel free to stay connected with me by adding a comment below after performing the steps, as I want to ensure this is resolved for you. Just reply to this post, and I'll get back to you. Take care always.