On December 31, 2019 (at fiscal year end), Student Industries' Allowance for Doubtful Accounts had a debit balance of $10,000 on its unadjusted trial balance. Student Industries estimates that 10% of its gross accounts receivable balance of 182701 will become uncollectible. On March 31, 2020, Student Industries determined that Customer As account of $12,000 was uncollectible. On April 8, 2020, Customer A paid the amount previously written off.

Based on the facts above, prepare any journal entry or entries that would necessary on December 31, 2019:

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