Rashad contributes a machine having a basis of $30,000 and an FMV of $25,000 to a partnership in exchange for a 20% interest in partnership capital, profits, and losses. Prior to the contribution, the partnership had recourse liabilities of $20,000. The partnership assumes a $20,000 recourse liability that is owed by Rashad on the machine. Partners share the economic risk of loss from recourse liabilities in the same way they share partnership losses. Rashad's basis in his partnership interest is