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

Toán Lớp 6: tìm số nguyên x thỏa mãn -4/2x+1=8/-10

Toán Lớp 6: tìm số nguyên x thỏa mãn -4/2x+1=8/-10

Comments ( 2 )

  1. -4/2 . x +1 =(8)/(-10)
    => -4/2 .x +1 =(-8)/(10)
    => -4/2 .x = (-8/10) – 1
    => -4/2 .x = -9/5
    => x= (-9/5) : (-4/2)
    => x=9/10

  2. -4/2x+1=8/-10
    -4/2x+1=-8/10
    -4/2x=-8/10-1
    -4/2x=-9/5
    x=-9/5:-4/2
    x=9/10
    Vậy x=9/10

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