Steffi Derr and Leigh Finger form a partnership by combining assets of their separate businesses. Derr contributes the following: cash, $1,000; supplies that cost $2,400; inventory that cost $3,500; and machinery that cost $9,900, along with its accumulated depreciation of $5,000. The partners agree that $2,000 is a good estimate of supplies that inventory has a market value of $3,000, and that machinery is worth $4,000. Prepare the partnership's journal entry to record Derr's investment.