Jeremy needs to buy soccer supplies for his team. while shopping, he finds a 3-pack of shin guards plus 2 soccer balls on sale for $48.97. he later finds a 5-pack of shin guards and 3 soccer balls on sale for $76.45. the representative equations are given below, where x is the cost of each pack of shin guards, and y is the cost of each soccer ball. excluding taxes, what is the cost of one soccer ball?