This is for my financial accounting class

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Equipment was acquired on January 1, 2010, at a cost of $75,000. The equipment was originally estimated to have a salvage value of $5,000 and an estimated life of 10 years. Depreciation has been recorded through December 31, 2013, using the straight-line method. On January 1, 2014, the estimated salvage value was revised to $7,000 and the useful life was revised to a total of 8 years. Determine the depreciation expense for 2014