Tìm x thuộc Q a) 2/3 x = -4/27 b) 1/3 + 1/2 : x = -4 c) 3/4 + 1/4 : x = 2/5

Question

Tìm x thuộc Q
a) 2/3 x = -4/27
b) 1/3 + 1/2 : x = -4
c) 3/4 + 1/4 : x = 2/5

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Natalia 3 tháng 2021-09-10T07:14:39+00:00 2 Answers 11 views 0

Answers ( )

    0
    2021-09-10T07:15:50+00:00

     a,`2/3 x = (-4)/27`

    `x = (-4)/27 : 2/3`

    `x = (-4)/27 . 3/2`

    `x = (-2)/9`

    b, `1/3 + 1/2 : x = -4`

    `1/2 : x = -4 – 1/3`

    `1/2 : x = (-12)/3 – 1/3`

    `1/2 : x = (-13)/3`

    `x = 1/2 : (-13)/3`

    `x = 1/2 . (-3)/13`

    `x = (-3)/26`

    c, `3/4 + 1/4 : x = 2/5`

    `1/4 : x = 2/5 – 3/4`

    `1/4 : x = (-7)/20`

    `x = 1/4 : (-7)/20`

    `x = (-5)/7`

    HỌC TỐT NHA !

    #NOCOPY

    #Sâu

    0
    2021-09-10T07:16:15+00:00

    a) 2/3 x = -4/27

              x = -4/27 : 2/3

              x = -2/9

    b) 1/3 + 1/2 : x = -4

                  1/2 : x = -4 – 1/3

                  1/2 : x = -13/3

                          x = 1/2 : (-13/3)

                          x = -3/26

    c) 3/4 + 1/4 : x = 2/5

                  1/4 : x = 2/5 – 3/4

                  1/4 : x = -7/20

                          x = 1/4 : (-7/20)

                          x = -5/7

           Chúc bạn học tốt nha <3

     

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