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

Toán Lớp 6: a,4 ( x – 3 )= -16 b, ( x -11 ) -2ᒾ = -14 c,2x -2 = -13 d, 9 × ( x + 14 ) = 11 e, 5ᒾ ( x – 1 ) – 4 = 21 Giúppp

Home/ Toán Lớp 6: a,4 ( x – 3 )= -16 b, ( x -11 ) -2ᒾ = -14 c,2x -2 = -13 d, 9 × ( x + 14 ) = 11 e, 5ᒾ ( x – 1 ) – 4 = 21 Giúppp

Toán Lớp 6: a,4 ( x – 3 )= -16 b, ( x -11 ) -2ᒾ = -14 c,2x -2 = -13 d, 9 × ( x + 14 ) = 11 e, 5ᒾ ( x – 1 ) – 4 = 21 Giúppp

Tháng Chín 14, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: a,4 ( x – 3 )= -16
b, ( x -11 ) -2ᒾ = -14
c,2x -2 = -13
d, 9 × ( x + 14 ) = 11
e, 5ᒾ ( x – 1 ) – 4 = 21
Giúppp

Comments ( 2 )

  1. cobexinhdep
    cobexinhdep
    14 Tháng Chín, 2022 at 4:56 sáng
    Reply
    \text{a) 4.(x-3)=-16}
    $\Rightarrow$\text{x-3=-16:4}
    $\Rightarrow$\text{x-3=-4}
    $\Rightarrow$\text{x=-4+3}
    $\Rightarrow$\text{x=-1}
    __________________________________
    \text{b) (x-11)-}$2^{2}=-14$
    $\Rightarrow$\text{(x-11)-4=-14}
    $\Rightarrow$\text{x-11=-14+4}
    $\Rightarrow$\text{x-11=-10}
    $\Rightarrow$\text{x=-10+11}
    $\Rightarrow$\text{x=1}
    _________________________________
    \text{c) 2x-1=-13}
    $\Rightarrow$\text{2x=-13+1}
    $\Rightarrow$\text{2x=-12}
    $\Rightarrow$$\text{x=-12:2}$
    $\Rightarrow$$\text{x=-6}$
    _________________________________
    $\text{d) 9.(x+14)=11}$
    $\Rightarrow$$\text{x+14=11:9}$
    $\Rightarrow$$\text{x+14=}$$\dfrac{11}{9}$
    $\Rightarrow$$x=\dfrac{11}{9}-14$
    $\Rightarrow$$x=\dfrac{-115}{9}$
    ___________________________________
    \text{e) }$5^{2}.(x-1)-4=21$
    $\Rightarrow$\text{25.(x-1)-4=21}
    $\Rightarrow$\text{25.(x-1)=21+4}
    $\Rightarrow$\text{25.(x-1)=25}
    $\Rightarrow$\text{x-1=25:25}
    $\Rightarrow$\text{x-1=1}
    $\Rightarrow$\text{x=1+1}
    $\Rightarrow$\text{x=2}
    ___________________________________
    \text{#mct}
     

  2. thanhbinh2k5
    thanhbinh2k5
    14 Tháng Chín, 2022 at 4:56 sáng
    Reply
    Giải đáp+ Lời giải và giải thích chi tiết:
     Bạn xem hình

    toan-lop-6-a-4-3-16-b-11-2ᒾ-14-c-2-2-13-d-9-14-11-e-5ᒾ-1-4-21-giuppp

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

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