X exchanged rental property worth $50,000 with an adjusted basis of $40,000 and no liabilities, for Y's rental property worth $90,000 which had an adjusted basis of $72,000 and which was subject to a mortgage of $65,000. Y also transferred to X $20,000 worth of stock in which Y had an adjusted basis of $13,000. What is the amount of gain or loss that X must recognize? Blank 1 Blank 1 Addyour