Explanation:
The journal entry to record the estimated uncollectible accounts is shown below:
Bad debt expense Dr $7,500
To Allowance for uncollectible accounts $7,500
(Being the bad debt expense is recorded)
The computation is shown below:
= Estimated amount for uncollectible accounts - credit balance in allowance for uncollectible accounts
= $12,000 - $4,500
= $7,500