at the beginning of the year posh advertising owed customers 2700 for unearned revenue collected in advance

Requirements
1. Record the adjusting entry assuming that Posh records the cash receipt of unearned revenue by initially crediting a liability account. Post the adjusting entry to the Unearned Revenue and Service Revenue T-accounts. Make sure to include the beginning balance and additional unearned revenue in the Unearned Revenue T-account.
2. Record the adjusting entry assuming that Posh records the cash receipt of unearned revenue by initially crediting a revenue account. Post the adjusting entry to the Unearned Revenue and Service Revenue T-accounts. Make sure to include the beginning balance in the Unearned Revenue T-account and the additional unearned ­revenue in the Service Revenue T-account.
3. Compare the ending balances of the T-accounts under both approaches. Are they the same?