Question

[Mai hoàng]

Bài 1 : Tìm x , y , z :

a,\(\frac{x}{5}\) = \(\frac{-12}{20}\)

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b, \(\frac{2}{y}\)= ​​ \(\frac{11}{-66}\)​​​​  

c, \(\frac{-3}{6}\)= \(\frac{x}{-2}\)= \(\frac{-18}{y}\)= \(\frac{-z}{24}\)