`Tìm` `x` `:` `7/{9}` `:` `(` `2` `+` `3/{4}` `x` `)` `+` `5/{9}` `=` `23/{27}` LÀM NHANH + ĐÚNG = HAY NHẤT + 5 SAO + CẢM ƠN

0 bình luận về “`Tìm` `x` `:` `7/{9}` `:` `(` `2` `+` `3/{4}` `x` `)` `+` `5/{9}` `=` `23/{27}` LÀM NHANH + ĐÚNG = HAY NHẤT + 5 SAO + CẢM ƠN”

1. Đáp án + Giải thích các bước giải:

   `7/9:(2+3/4 x)+5/9=23/27`

   `=>7/9:(2+3/4 x)=23/27-5/9`

   `=>7/9:(2+3/4 x)=23/27-15/27`

   `=>7/9:(2+3/4 x)=8/27`

   `=>2+3/4 x=7/9:8/27`

   `=>2+3/4 x=7/9 . 27/8`

   `=>2+3/4 x=7/1 . 3/8`

   `=>2+3/4 x=21/8`

   `=>3/4 x=21/8 – 2`

   `=>3/4 x=21/8 – 16/8`

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

   `=>x=5/8:3/4 `

   `=>x=5/8. 4/3 `

   `=>x=5/2. 1/3 `

   `=>x=5/6`

   Vậy `x=5/6`

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2. `7/9:(2+3/4x)+5/9=23/27`

   `=>7/9:(2+3/4x)=23/27-5/9`

   `=>7/9:(2+3/4x)=8/27`

   `=>2+3/4x=7/9:8/27`

   `=>2+3/4x=21/8`

   `=>3/4x=21/8-2`

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

   `=>x=5/8:3/4`

   `=>x=5/6`

   Vậy `x=5/6`

    

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