Noah works in a sporting goods store. he packs basketballs in shipping boxes to

Noah works in a sporting goods store. he packs basketballs in shipping boxes to fill customers' orders. noah packed 8 full boxes and 5 boxes that were not full. each of the 5 boxes contained 3 fewer basketballs than a full box. the total number of basketballs he packed was 245. which equation can be used to find n, the number of basketballs in a full box?