What is the missing statement in the proof? ​

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What is the missing statement in the proof? ​

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Trúc Chi 5 years 2021-09-02T02:55:56+00:00 1 Answers 14 views 0

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  1. giabao
    0
    2021-09-02T02:57:12+00:00
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    I think something in the question is missing

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