Answer and Explanation:
The journal entries are shown below:
1. Equipment Dr $21,300
To cash $21,300
(Being the equipment is purchased for cash)
For recording this we debited the equipment as it increased the assets and credited the cash as it reduced the assets
2. Cash Dr $6,100
To Service revenue $6,100
(Being the cash received is recorded)
For recording this we debited the cash as it increased the assets and credited the service revenue as it increased the revenue
3. Rent expense $900
To Cash $900
(Being the rent is paid)
For recording this we debited the rent expense as it increased the expenses and credited the cash as it reduced the assets
4. Office supplies Dr
To Account payable
(Being the office supplies purchased on account)
For recording this we debited the office supplies as it increased the assets and credited the account payable as it increased the liabilities
5. Salaries expense
To cash
(Being the salaries paid is recorded)
For recording this we debited the salaries expense as it increased the expenses and credited the cash as it reduced the assets