Unadjusted trial balance Reference Accounts Payable Service Revenue Salaries Expense \begin{tabular}{|l|l|l|l|} \hline Dec. 31 & & \\ \hline & & & \\ \hline & & & \\ \hline & & & \\ \hline & & & \\ \hline \end{tabular} Unearned Revenue Supplies Expense Depr. Expense-Equipment Insurance Expense \begin{tabular}{|l||l|l|l|} \hline \hline & & & \\ \hline & & \\ \hline & & & \\ \hline & & & \\ \hline \end{tabular}