Mình cam ơn ban nhưng ban chi ro hơn duoc k
\(x:y:z=3:8:5\)
\(\Rightarrow\frac{x}{3}=\frac{y}{8}=\frac{z}{5}\)
\(\Rightarrow\frac{3x}{9}=\frac{y}{8}=\frac{2z}{10}=\frac{3x+y-2z}{9+8-10}=\frac{14}{7}=2\)
\(\Rightarrow\frac{x}{3}=\frac{y}{8}=\frac{z}{5}=2\Rightarrow x=6;y=16;z=10\)
từ đề bài ta có
\(\frac{x}{3}=\frac{y}{8}=\frac{z}{5}=\frac{x+y-z}{3+8-5}=\frac{3x+y-2z}{9+8-10}=\frac{14}{7}=2\)
từ đó ta có:\(\frac{x}{3}\)=2 =>x=2*3=6
\(\frac{y}{8}\)=2 =>y=2*8=16
\(\frac{z}{5}\)=2=> z=2*5=10