Có: \(6x=4y \Rightarrow y = \frac 6 4 x=\frac 3 2 x \)
\(6x=3z \Rightarrow z=2x\)
Lại có: \(x+y-z=2\)
\(\Leftrightarrow x+\frac 3 2x-2x=2\)
\(\Leftrightarrow \frac 1 2 x=2 \Rightarrow x=4\)
\(\left\{\ \begin{matrix}y=\frac 6 4.4=6
\\
z=2.4=8
\end{matrix}\right.\)
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