Sally is 54 years old and her mother is 80 how many years ago was sally’s mother three times her age

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Sally is 54 years old and her mother is 80 how many years ago was sally’s mother three times her age

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Khang Minh 3 years 2021-08-24T23:13:09+00:00 1 Answers 8 views 0

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  1. danthu
    0
    2021-08-24T23:14:12+00:00
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    why is sally so old and her mother uh

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )