Hệ phương trình \(\left\{{}\begin{matrix}x+3y+4z=4\\5x+\dfrac{1}{2}y-5z=-5\\\dfrac{2}{3}x-y+z=1\end{matrix}\right.\) có nghiệm là
\(\left(x;y;z\right)=\left(0;0;1\right)\).\(\left(x;y;z\right)=\left(1;2;3\right)\).\(\left(x;y;z\right)=\left(0;1;0\right)\).\(\left(x;y;z\right)=\left(\dfrac{1}{2};\dfrac{3}{2};1\right)\).