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

Toán Lớp 5: 66x+23x=8900 352x-63x-23x=260+6

Toán Lớp 5: 66x+23x=8900
352x-63x-23x=260+6

Comments ( 2 )

  1. a)66x+23x=8900
    x.(66+23)=8900
    x.89=8900
    x=8900:89
    x=100
    b)352x-63x-23x=260+6
    x.(352-63-23)=266
    x.266=266
    x=266

  2. Giải đáp:+lời giải
    66x+23x=8900
    =>x(66+23)=8900
    =>89x=8900
    =>x=8900:89=100
    đáp số :x=100
    352x-63x-23x=260+6
    =>x(352-63-23)=266
    =>266x=266
    =>x=266:266=1
    đáp số x=1
    Teamlovesmath
    xin hay nhất nhé
     

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