Tìm x 1) 3/4 x 2/3 = -5/12 2) 3/4 x -3/5 = 1/2 3) 2/5 + x = 7/3 4) 3/12 x + 3/4 = 1/6 5) 7/4 – x = -₁7/8

0 bình luận về “Tìm x 1) 3/4 x 2/3 = -5/12 2) 3/4 x -3/5 = 1/2 3) 2/5 + x = 7/3 4) 3/12 x + 3/4 = 1/6 5) 7/4 – x = -₁7/8”

1. 1) `3/4 x × 2/3 = -5/12`

   `3/4 x = -5/8`

   `x=-5/6`

   2) `3/4 x – 3/5 = 1/2`

   `3/4 x = 11/10`

   `x=22/15`

   3) `2/5 + x = 7/3`

   `x=29/15`

   4) `3/12 x + 3/4 = 1/6`

   `1/4 x=  -7/12`

   `x= -7/3`

   5) `7/4 – x = (7/8)/1`

   `x= 7/4 -7/8`

   `x=7/8`

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2. `1,3/4x * 2/3=-5/12`

   `<=>3/4x = -5/12 : 2/3`

   `<=>3/4x = -5/8`

   `<=>x=-5/6`

   `2, 3/4x -3/5= 1/2`

   `<=>3/4x=1/2+3/5`

   `<=>3/4x=11/10`

   `<=>x=22/15`

   `3,2/5 +x=7/3`

   `<=>x=7/3-2/5`

   `<=>x=29/15`

   `4,3/12x -3/4=1/6`

   `<=>3/12x=1/6+3/4`

   `<=>3/12x=11/12`

   `<=>x=11/3`

   `5,7/4-x=(7/8)/1`

   `<=>x=7/4-(7/8)/1`

   `<=>x=7/8`

   Vậy ………..

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