Practice problem
Solve the system of equations. {4x+2y+z=24x−2y+5z=62x+2y+z=72\\\begin{cases}4x+2y+z&=2\\4x-2y+5z&=6\\2x+2y+z&=72\end{cases}⎩⎨⎧4x+2y+z4x−2y+5z2x+2y+z=2=6=72
x=−35y=1412z=1\begin{matrix}x=-35&y=\frac{141}2&z=1\end{matrix}x=−35y=2141z=1
x=−35y=47z=48\begin{matrix}x=-35&y=47&z=48\end{matrix}x=−35y=47z=48
x=−1035y=1395z=1445\begin{matrix}x=-\frac{103}5&y=\frac{139}5&z=\frac{144}5\end{matrix}x=−5103y=5139z=5144
x=−692y=1392z=1\begin{matrix}x=-\frac{69}{2}&y=\frac{139}{2}&z=1\end{matrix}x=−269y=2139z=1
Type a concept, like “slope” or “photosynthesis”.
