Ariel bought several bags of caramel candy and
several bags of taffy. The number of bags of
taffy was 5 more than the number of bags of
caramels. Taffy bags weigh 8 ounces each, and caramel bags weigh 16 ounces
each. The total weight of all the bags of candy was 400 ounces. How many
bags of candy did she buy?