what is the easy way to set up this type of question?

3) Suppose you buy a piece of office equipment for $8,000.00. After 6 years you sell it for a scrap value of $2,000.00. The equipment is depreciated linearly over 6 years. The value of the piece of equipment after 4 years is (rounded to the nearest whole dollar) a) $5,000.00 b) $4,571.00 c) $2,000.00 d) 84,000.00 e) $6,000.00 f) None of the above