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Mathematics, 21.06.2019 21:30 LEXIEXO

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

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In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits revers...
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