Mr. Austin, the owner of two car dealerships in Dayton, is holding a contest to see which one can sell the most cars. Dayton Cars has already sold 1 car, and Austin's Autos has sold 3 cars. Going forward, the salespeople at Dayton Cars think they can sell 3 cars per day, whereas the salespeople at Austin's Autos are aiming for sales of 2 cars per day. If the salespeople's predictions are accurate, it won't be long before the two dealerships are tied. How many cars will each lot have sold? Write a system of equations, graph them, and type the solution.