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Mathematics, 04.02.2020 22:02 issacurlyheadka

There were three times as many books in the top bookshelf as in the bottom one. after 15 books were moved from the top to the bottom, there were still two times as many books in the top than in the bottom. how many books are in the bottom bookshelf now?

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There were three times as many books in the top bookshelf as in the bottom one. after 15 books were...
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