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

Toán Lớp 6: 144 : ( 8 . x – 76 ) = 36 yêu cầu làm rõ ràng các bước , ngắn gọn

Toán Lớp 6: 144 : ( 8 . x – 76 ) = 36
yêu cầu làm rõ ràng các bước , ngắn gọn

Comments ( 2 )

  1. #huy
    144 : ( 8 . x – 76 ) = 36
    ↔8.x-76=144:36=4
    ↔8.x=76+4=80
    ↔x=10:8
    ↔x=10
    S={10}

  2. $\text{*Ta có:144:(8x-76)=36}$
    $\text{=>(8x-76)=144:36}$
    $\Rightarrow$\text{8x-76=4}
    $\Rightarrow$\text{8x=76+4}
    $\Rightarrow$$\text{8x=80}$
    $\Rightarrow$$\text{x=80:8}$
    $\Rightarrow$$\text{x=10}$
    $\text{KL:Vậy:x=10}$
    $\text{#Trang}$

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

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