Connie and Henry had 684 marbles in total. During the first game, Henry lost 1/3 of his marbles to Connie. In the second game, Connie lost 2/5 of her marbles to Henry. In the end, they had the same number of marbles. How many marbles did Henry have at first?
C = 684 - H
2/3H = 3/5C = 3/5(684-H)
Solve for H, then C.