Practice problem
Solve this system of equations using matrix methods. {−4x+2y−6z=−568x+2y−3z= 16−2x−8y−7z=−96\\\begin{cases}-4x+2y-6z&=-56\\8x+2y-3z&=\ \ \ 16\\-2x-8y-7z&=-96\end{cases}⎩⎨⎧−4x+2y−6z8x+2y−3z−2x−8y−7z=−56= 16=−96
x=3y=3z=9\begin{matrix}x=3&y=3&z=9\end{matrix}x=3y=3z=9
x=3y=3z=8\begin{matrix}x=3&y=3&z=8\end{matrix}x=3y=3z=8
x=4y=4z=8\begin{matrix}x=4&y=4&z=8\end{matrix}x=4y=4z=8
x=4y=4z=9\begin{matrix}x=4&y=4&z=9\end{matrix}x=4y=4z=9
Type a concept, like “slope” or “photosynthesis”.
