https://adamaths.com/forum/
20240010040
https://adamaths.com/forum/viewtopic.php?f=117&t=5811
Page
1
of
1
20240010040
Posted:
Mon Feb 05, 2018 9:28 pm
by
ada
$\begin{align}5y-x+2z&=45\\2x-5z&=14\\z-5x&=11\end{align}$