Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Students in Mrs. Schmidt's third grade class are working on times tables, and they demonstrate mastery by passing tests. Quincy has passed 8 tests so far. His classmate, Shivani, has passed 4 tests of them. From now on, Quincy plans to take and pass 1 test per week. Meanwhile, Shivani plans to do 5 per week. At some point, Quincy will catch up to Shivani. How long will it take? How many tests will each child have passed?

In __ weeks, the children will each have passed__ test