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Mathematics, 08.07.2019 05:10 tqjb2007

Mary, chau, and david have a total of $87 i their wallets. marry has 9$ more than chau. david has two times what mary has. how much do they have in each wallet?

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Mary, chau, and david have a total of $87 i their wallets. marry has 9$ more than chau. david has tw...
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