Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: a)315 + (125 – x ) =435 b) (x -105) :21 = 15 c) ( x –120 ) : 35 = 5

Home/ Toán Lớp 6: a)315 + (125 – x ) =435 b) (x -105) :21 = 15 c) ( x –120 ) : 35 = 5

Toán Lớp 6: a)315 + (125 – x ) =435 b) (x -105) :21 = 15 c) ( x –120 ) : 35 = 5

Tháng Chín 19, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: a)315 + (125 – x ) =435
b) (x -105) :21 = 15
c) ( x –120 ) : 35 = 5

Comments ( 2 )

  1. baoquyen
    baoquyen
    19 Tháng Chín, 2022 at 9:42 sáng
    Reply
    a, 315 + (125 – x) = 435
    $\Rightarrow$ (125 – x) = 435 – 315
    $\Rightarrow$ 125 – x = 120
    $\Rightarrow$ x = 125 – 120
    $\Rightarrow$ x = 5
    $\text{Vậy}$ x = 5
    _____________________
    b, (x – 105) : 21 = 15
    $\Rightarrow$ (x – 105) = 15 . 21
    $\Rightarrow$ x – 105 = 315
    $\Rightarrow$ x = 315 + 105
    $\Rightarrow$ x = 420
    $\text{Vậy}$ x = 420
    ______________________
    c, (x – 120) : 35 = 5
    $\Rightarrow$ (x – 120) = 5 . 35
    $\Rightarrow$ x – 120 = 175
    $\Rightarrow$ x = 175 + 120
    $\Rightarrow$ x = 295
    $\text{Vậy}$ x = 295

  2. cobexinhdep
    cobexinhdep
    19 Tháng Chín, 2022 at 9:42 sáng
    Reply
    a) 315 + (125 – x) = 435
    125 – x = 435 – 315
    125 – x = 120
    x = 125 – 120
    x = 5.
    b) (x – 105) : 21 = 15
    x – 105 = 15 xx 21
    x – 105 = 315
    x = 315 + 105
    x = 420.
    c) (x – 120) : 35 = 5
    x – 120 = 5 xx 35
    x – 120 = 175
    x = 175 + 120
    x = 295.
    ~ Xin câu trả lời hay nhất!!! ~
     

Leave a reply

222-9+11+12:2*14+14 = ? ( )

Ngọc Ðàn

About Ngọc Ðàn