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

Toán Lớp 6: 12x – 33 = 3 mũ 2 X 3 mũ 3 lm cho mik vs

Toán Lớp 6: 12x – 33 = 3 mũ 2 X 3 mũ 3 lm cho mik vs

Comments ( 2 )

  1. 12x – 33 = 3^2 . 3^3
    12x – 33 = 3^5
    12x – 33 = 243
    12x = 243 + 33
    12x = 276
    x = 276 : 12
    x = 23
    Vậy x = 23
     

  2. 12x-33=3^2. 3^3
    ⇔12x-33=3^5
    ⇔12x-33=243
    ⇔12x=276
    ⇔x=23

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