An asset with first cost of $50,000 is expected to have a maximum useful life of 10 years. It's salvage value is expected to decrease by $10,000 each year for the first three years after which it will decrease by $2,000 per year for the next 7 years. Annual Operating Cost is $25,000/yr. Interest rate is 15%/year CA. Set up the equations for EUAC for the first 5 years