Mathematics, 18.04.2020 03:22 econsta3

Lindsay is 55 5 5 years younger than Mark. Seven years ago, the sum of their ages was 3131 31 31 . Let ll l l be Lindsay's age and let mm m m be Mark's age

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Lindsay is 55 5 5 years younger than Mark. Seven years ago, the sum of their ages was 3131 31 31 . L...

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