Question
Ryan started with some beads at the beginning of a game. At the end of the first round of the game, he lost 7 beads to his friend Eric but won 10 beads from his friend Lee. At the end of the second round, he lost 9 beads to Lee but won 9 beads from Eric. In the end, Ryan had 20 beads. How many beads did Ryan have at first before the start of the game?
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Ryan started with some beads at the beginning of a game. At the end of the first round of the game, he lost 7 beads to his friend Eric but won 10 beads from his friend Lee. At the end of the second round, he lost 9 beads to Lee but won 9 beads from Eric. In the end, Ryan had 20 beads. How many beads did Ryan have at first before the start of the game?