Answer:
credited; right; debited; left
Step-by-step explanation:
The journal entry to record this transaction is shown below:
Cash A/c Dr $1,900
To Service revenue A/c $1,900
(Being the cash is collected)
It to be displayed in T accounts
For cash account
Cash
Debit side
Service revenue $1,900
For service revenue account
Service revenue
Credit side
Cash $1,900
So, the cash account would be debited and would be displayed on the left hand side while the service revenue would be credited and would be displayed on the right hand side