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

Toán Lớp 6: 15x(X+1)+35=2×100 mũ 2 (x là nhân ,X là ích )

Toán Lớp 6: 15x(X+1)+35=2×100 mũ 2
(x là nhân ,X là ích )

Comments ( 2 )

  1. 15 . (x+1)+35= 2 . $100^{2}$
    15 . (x+1)+35= 2 . 10000
    15 . (x+1)+35= 20000
    15 . (x+1)      = 20000-35
    15 . (x+1)      = 19965
    x+1                = 19965 : 15
    x+1                = 1331
    x                     = 1331 – 1
    x                     = 1330
    Vậy x= 1330

  2. 15.(x+1)+35=2.100²
    15(x+1)+35=2.10000
    15(x+1)+35=20000
    15(x+1)=20000-35
    15(x+1)=19965
    x+1=19965:15
    x+1=1331
    x=1331-1
    x=1330
    to Vậy x=1330

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