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Mathematics, 26.01.2021 04:10 mustafakhalil02

John, Johan, and Jonathan collect postage stamps. Johan and Jonathan have the same number of stamps. Two times Johan’s collection is eleven less than five times John’s collection, and three times Jonathan’s collection is three less than seven times John’s collection. The number of postage stamps in John’s collection is?

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John, Johan, and Jonathan collect postage stamps. Johan and Jonathan have the same number of stamps....
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