Oliver collected 5 times as many computer games as Darius. When Oliver gave Darius some of his computer games, they each had 9. How many computer games had Oliver given to Darius?
+2666 From the second sentence, we know \(o + d = 18\)
From the first sentence, we know \(o = 5d\).
Now, just solve or o and d and see how many games Oliver gave to Darius so they have the same number of games.
