x – 5/12 = 2/(-6) , x = -2 1/3 = 5/6 , x/18=1/9 + -3 /18 x+3/6 = 1/2 + 2/-3

0 bình luận về “x – 5/12 = 2/(-6) , x = -2 1/3 = 5/6 , x/18=1/9 + -3 /18 x+3/6 = 1/2 + 2/-3”

1. ` x/18=1/9 + -3 /18`

   `<=>x/18=-1/18`

   `<=>x=-1`

   `x+3/6 = 1/2 + 2/-3`

   `<=>x=1/2+2/-3-3/6`

   `<=>x=-2/3`

   `x – 5/12 = 2/(-6)`

   `<=>x=1/12`

   ` x + -2 1/3 = 5/6`

   `<=>x=-37/6`

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2. Đáp án:

   x – $\frac{5}{12}$  = $\frac{2}{-6}$ 

   <=> x = $\frac{2}{-6}$ + $\frac{5}{12}$

   <=> x = $\frac{-4}{12}$ + $\frac{5}{12}$

   <=> x = $\frac{1}{12}$

   x  – $\frac{21}{3}$ = $\frac{5}{6}$

   <=> x = $\frac{5}{6}$ + $\frac{21}{3}$

   <=> x = $\frac{5}{6}$ + $\frac{42}{6}$

   <=> x = $\frac{47}{6}$

   $\frac{x}{18}$=$\frac{1}{9}$ + $\frac{-3}{18}$

   <=> $\frac{x}{18}$=$\frac{-1}{18}$ 

   <=> x = -1

   x+ $\frac{3}{6}$= $\frac{1}{2}$+ $\frac{2}{-3}$

   <=> x+ $\frac{3}{6}$= $\frac{1}{6}$

   <=> x = $\frac{1}{6}$ –  $\frac{3}{6}$

   <=> x = $\frac{-2}{6}$

    

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