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

Toán Lớp 3: ( 8 + X ) x 4 + X = 102 Trình bày ra hộ mk luon nhé

Toán Lớp 3: ( 8 + X ) x 4 + X = 102
Trình bày ra hộ mk luon nhé

Comments ( 2 )

  1. ( 8 + X ) x 4 + X = 102
    8×4+Xx4+X=102
    32+Xx(4+1)=102
    32+Xx5=102
    Xx5=102-32=70
    X=70:5
    X=14

  2. (8+x)×4+x=102
    →32+4x+x=102
    →5x=70
    →x=14
    Vậy: x=14

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