Tìm x biết 4 nhân (23.5 – x)-15.8 =52.2

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Tìm x biết
4 nhân (23.5 – x)-15.8 =52.2

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Genesis 1 năm 2021-10-16T01:19:49+00:00 2 Answers 3 views 0

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  1. dananhnhu
    0
    2021-10-16T01:20:52+00:00
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    4 . ( 23 . 5 – x) – 15 . 8 = 52 . 2

    4 . ( 115 – x) – 15 . 8 = 52 . 2

    4 . ( 115 – x) – 15 . 8 = 104

    4 . ( 115 – x) – 120 = 104

    4 . ( 115 – x) = 104 + 120

    4 . ( 115 – x) = 224

    ( 115 – x) = 224 : 4

    ( 115 – x) = 56

    x = 115 – 56

    x = 59

    chúc bn học tốt

    cho xin ctlhn

  3. ngocchau
    0
    2021-10-16T01:21:08+00:00
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    Đáp án:

     Giải thích các bước giải:

    4 x ( 23 . 5 – x) – 15 . 8 = 52 . 2

    4 x( 115 – x) – 15 . 8 = 52 . 2

    4 x( 115 – x) – 15 . 8 = 104

    4 x ( 115 – x) – 120 = 104

    4 x( 115 – x) = 104 + 120

    4 x( 115 – x) = 224

    ( 115 – x) = 224 : 4

    ( 115 – x) = 56

    x = 115 – 56

    x = 59

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