how much gain or loss is recognized on the sale of a machine when sandy acquired business machinery…

(which qualified as 7-year MACRS property) on July 15,2009, for $10,000. In 2009,Sandy claimed a $1,429 regular MACRS depreciation deduction and she elected not to claim 2010-2012, Sandy did not claim any depreciation deduction on her tax returns in those years. She sells the machine on July 1, 2012, for $6,000.