Is this how I do the post closing trial balance?

Cash debit 6695
Accounts rec debit 1000
Supplies debit 1320
Prepaid rent debit 1650
Prepaid insurance debit 1650
Office equipment debit 9000
Accumulated depreciation credit 250
Accounts payable credit 900
Unearned fees credit 1500
Common stock credit 14,950
Retained earnings credit 3,715

As I stated in your other thread: https://www.askmehelpdesk.com/showthread.php?t=20618

Yeah, the accounts and numbers appear to be right.

I'd also add to make sure you add the proper heading.