Algebra 2 word problem?

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1500 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 4% per year, and for the laptop it was 9.5% per year. The total finance charges for one year were $363.75 . How much did the desktop computer cost before finance charges?