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

Toán Lớp 4: Tìm x a) x + 847 x 2 = 1953 – 74 b) x – 7015 : 5 = 374 x 7 c) x : (7 x 18) = 5839 + 8591

Toán Lớp 4: Tìm x
a) x + 847 x 2 = 1953 – 74
b) x – 7015 : 5 = 374 x 7
c) x : (7 x 18) = 5839 + 8591

Comments ( 2 )

  1. @Bao
    a) x+847xx2=1953-74
    ->x+1694=1879
    ->x=1879-1694
    ->x=185
    b)x-7015:5=374xx7
    ->x-1403=2618
    ->x=2618+1403
    ->x=4021
    c)x:(7xx18)=5839+8591
    ->x:126=14430
    ->x=14430xx126
    ->x=1818180

  2. a) x + 847 × 2 = 1953 – 74
    x + 1694 = 1879
    x = 1879 – 1694
    x = 185
    Vậy x = 185
    b) x – 7015 : 5 = 374 × 7
    x – 1403 = 2618
    x = 2618 + 1403
    x = 4021
    Vậy x = 4021
    c) x : ( 7 × 18 ) = 5839 + 8591
    x : 126 = 14430
    x = 14430 × 126
    x = 1 818 180
    Vậy x = 1 818 180 

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

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