$\frac{2}{3}$x-70$\frac{10}{11}$ : ( $\frac{131313}{151515}$ +$\frac{131313}{353535}$+ $\frac{1313131}{636363}$ +$\frac{131313}{999999}$ )=-5

0 bình luận về “$\frac{2}{3}$x-70$\frac{10}{11}$ : ( $\frac{131313}{151515}$ +$\frac{131313}{353535}$+ $\frac{1313131}{636363}$ +$\frac{131313}{999999}$ )=-5”

1. Sửa đề: $\dfrac{131313}{636363}$

   $\dfrac{2}{3}x-70\dfrac{10}{11}:(\dfrac{131313}{151515}+\dfrac{131313}{353535}+\dfrac{131313}{636363}+\dfrac{131313}{999999})=-5$

   $\dfrac{2}{3}x-\dfrac{780}{11}:(\dfrac{13}{15}+\dfrac{13}{35}+\dfrac{13}{63}+\dfrac{13}{99})=-5$

   $\dfrac{2}{3}x-\dfrac{780}{11}:\dfrac{52}{33}$

   $\dfrac{2}{3}x-\dfrac{780}{11}.\dfrac{33}{52}=-5$

   $\dfrac{2}{3}x-45=-5$

   $\dfrac{2}{3}x=-5+45=40$

   $x=40.\dfrac{3}{2}=60$

    

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2. Đáp án:

    x = 60

   Giải thích các bước giải:

    

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