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

Toán Lớp 6: 28 +2(x – 9) = 50 giúp mình nha mình cần gấp

Toán Lớp 6: 28 +2(x – 9) = 50
giúp mình nha mình cần gấp

Comments ( 2 )

  1. \text{28 + 2(x – 9) = 50}$\\$\text{2(x – 9) = 50 – 28}$\\$\text{2(x – 9) = 22}$\\$\text{x – 9 = 22 : 2}$\\$\text{x – 9 = 11}$\\$\text{x = 11 + 9}$\\$\text{x = 20}$\\$\text{Vậy x = 20}

  2. 28+2(x-9)=50
    =>2(x-9)=50-28
    =>2(x-9)=22
    =>x-9=22:2
    =>x-9=11
    =>x=11+9
    =>x=20
    Vậy x=20

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

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