In January 2007, installation costs of $8,000 on new ma- chinery were charged to Repair Expense. Other costs of this machinery of $30,000 were correctly recorded and have been depreciated using the straight-line method with an estimated life of 10 years and no salvage value. At December 31, 2008, it is decided that the machinery has a remaining useful life of 20 years, starting with Jan- uary 1, 2008. What entry(ies) should be made in 2008 to correctly record transactions related to machinery, as- suming the machinery has no salvage value? The books have not been closed for 2008 and depreciation expense has not yet been recorded for 2008.