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

Toán Lớp 4: Tìm X A.492-(317-x)=225 B.X x 4-X=3282 C.X+6734=5782+3478 D.2054+X=977 x 4 Nhanh giùm ạ! Đang cần rất rất rất gấp !!!

Toán Lớp 4: Tìm X
A.492-(317-x)=225
B.X x 4-X=3282
C.X+6734=5782+3478
D.2054+X=977 x 4
Nhanh giùm ạ! Đang cần rất rất rất gấp !!!

Comments ( 2 )

  1. a) 492-(317-x)=225
    317-x=492-225
    317-x=267
    x=317-267
    x=50
    Vậy x=50
    b) x xx4-x=3282
    x xx(4-1)=3282
    x xx3=3282
    x=3282:3
    x=1094
    Vậy x=1094
    c) x+6734=5782+3478
    x+6734=9260
    x=9260-6734
    x=2526
    Vậy x=2526
    d) 2054+x=977xx4
    2054+x=3908
    x=3908-2054
    x=1854
    Vậy x=1854
     

  2. a) 492-(317-x)=225
    492-317+x=225
    x+175=225
    x=50
    b) Xxx4-x=3282
    3xxx=3282
    x=1094
    c)x+6734=5782+3478
    x+6734=9260
    x=2526
    d)2054+x=977xx4
    2054+x=3908
    x=1854

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