I'm not sure where I messed up because my balance sheet doesn't balance out

Assets-Liabilities + Stock + Retained Earnings | Revenue-Expense-Dividends Retained Earnings Assets Liabilities Stock | Retained. Revenue |Expense Dividends Example: Pay $1,000 forutilities inthe current -ls (1,000) , $ month 1|issue common stock in exchange for cash, $15,000, 2 Obtain a loan from the bank for $9,000. 3 Receive cash of $1,200 in advance from customers. 4 Purchase supplies on account, $2,400. 5 Pay one year of rent in advance, $12,000. 5' 15,c00 J 9oC0O 09000) goco 6 Provide services to customers on account, 53,000. 3ooo 30o 3000 7 Repay $4,000 of the loan in (2) above. 8 Pay the full amount for supplies purchased in (4) uoo Cucs) 900 000) Boco) above 300) 100,000 Caooo) 9 Provide services to customers in (3) above. 10 Pay cash dividends of $1,000 to stockholders.looo) 11 Purchased $20,000 equipment paid $5,000 cash 5000 signed note payable for rest. 12 Paid $2,000 for current month's salary Caooo) Totals Assets Liabilities +Stock +Retained Revenue Retained Does your Balance Sheet Equation balance ? Earnings Expenses Dividends Earnings net change in