Alvery Industries had a piece of equipment that cost $31,000 and had accumulated depreciation of $30,000.

Requirement
1. Record the disposition of the equipment assuming the following independent situations:
a. Alvery discarded the equipment receiving $0.
b. Alvery sold the equipment for $6,000 cash.
c. Alvery traded the equipment in on a new piece of equipment costing $35,000. Alvery was granted a $5,500 trade-in allowance for the old equipment and paid the difference in cash.
d. Alvery traded the equipment in on a new piece of equipment costing $23,000. Alvery was granted a $500 trade-in allowance for the old equipment and signed a note payable for the difference.