Tim and his mom are planting vegetables in their garden. Tim has finished planting 4 rows of carrots so far and is planting new rows at a rate of 3 rows per hour. His mom has finished 8 rows of tomatoes and will continue planting at 1 row per hour. Once the pair get to the point where they have finished the same number of rows, they will take a break and decide what to plant next. How many rows will they each have completed? Write a system of equations, graph them, and type the solution.