Tìm x: $x+25=25.2$.

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Tìm x: $x+25=25.2$.

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Vodka 4 years 2020-11-20T02:56:49+00:00 2 Answers 53 views 0

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    0
    2020-11-20T02:58:42+00:00

    x+25=25.2

    =>x+25=50

    =>x=25

     

    0
    2020-11-20T02:58:42+00:00

    `x + 25  = 25 . 2`

    `x + 25 = 50`

    `x = 50 – 25`

    `x = 25`

     

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