The cost of renting a canoe to use on River Y costs ​$. The cost of renting a canoe to use on River Z costs ​$ per hour plus a ​$ deposit. The total​ cost, c, of renting a canoe on either river for n hours can be represented by an equation. Write and graph a system to find how many hours you have to rent a canoe for the cost to be the same on both rivers.