constant r is the counting number from 7 to 9​

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constant
r is the counting number from 7 to 9​

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Trúc Chi 5 years 2021-09-05T06:47:41+00:00 1 Answers 24 views 0

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  1. Dau
    0
    2021-09-05T06:48:57+00:00
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    r: 8 ……………….

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