7x-4x+7-8=0 Tìm x………

Question

7x-4x+7-8=0
Tìm x………

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Cherry 5 years 2021-05-23T23:15:20+00:00 2 Answers 22 views 0

Answers ( )

  1. Sigrid
    0
    2021-05-23T23:16:57+00:00
    Reply

    $7x – 4x + 7 – 8 =0$

    $x(7 – 4) – 1       =0$

    $3x                    = 1$

    x                      =  $\frac{1}{3}$ 

    KL x= $\frac{1}{3}$ 

  2. phucdien
    0
    2021-05-23T23:17:05+00:00
    Reply

    7x-4x+7-8= 0
    => 3x +7= 0+8=8
    =>3x=8-7=1
    => X= 1:3= 1/3
    Xin ctlhn☺️☺️

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