Tìm x: a. x= -1/2*4/3 b. x/5=5/6*(-30)/19. /= phần; *= phép nhân

Question

Tìm x:
a. x= -1/2*4/3
b. x/5=5/6*(-30)/19.
/= phần;
*= phép nhân

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Everleigh 3 tháng 2021-09-06T18:10:57+00:00 2 Answers 6 views 0

Answers ( )

    0
    2021-09-06T18:11:58+00:00

    $#Dino$

    `a) x=-1/2xx4/3`

    `⇒x=-4/6=-2/3`

    ……………….

    `b) x/5=5/6xx(-30)/19`

    `⇒x/5=-25/19`

    `⇒x=(5.(-25))/19`

    `⇒x=-125/19`

    0
    2021-09-06T18:12:13+00:00

    a) `x= -1/2 . 4/3`

    `=> x= -4/6`

    `=> x= -2/3`

    Vậy `x = -2/3`

    b) `x/5 = 5/6 . ( -30/19)`

    `=> x/5 = -150/114`

    `=> x/5= -25/19`

    `=> x= -25/19 .5`

    `=> x= -125/19`

    Vậy `x = -125/19`

     

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