Question Number 179819 by caquito last updated on 02/Nov/22
$${x}+{y}+{z}=\mathrm{2} \\ $$$${x}+\mathrm{2}{y}−{z}=\mathrm{4} \\ $$$$\mathrm{2}{x}+{y}−\mathrm{2}{z}=\mathrm{2} \\ $$$$ \\ $$
Answered by manxsol last updated on 03/Nov/22
x-y-z-2-x-2y-z-4-2x-y-2z-2-