For each of the following errors, considered individually, indicate whether the error would cause the adjusted trial balance totals to be unequal. If the error would cause the adjusted trial balance totals to be unequal, indicate whether the debit or credit total is higher and by how much.

a. The adjustment for accrued wages of $6,900 was journalized as a debit to Wages Expense for $6,900 and a credit to Accounts Payable for $6,900. 

b. The entry for $1,519 of supplies used during the period was journalized as a debit to Supplies Expense of $1,519 and a credit to Supplies of $1,591.