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

analysisWe need to produce 1800-2000 words article. Use HTML tags. Must not exceed 150 words plain text in a row. Use lists at least two bullet lists per 700 words of content. 10-12 sections, each section at least 200 words. ...

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