Practice problem
Solve the system of equations. {6x+y+4z=−84y+2x=6−3z4x−y+z=−5\\\begin{cases}6x+y+4z&=-8\\4y+2x&=6-3z\\4x-y+z&=-5\end{cases}⎩⎨⎧6x+y+4z4y+2x4x−y+z=−8=6−3z=−5
x=2120y=92z=−4710\begin{matrix}x=\frac{21}{20}&y=\frac92&z=-\frac{47}{10}\end{matrix}x=2021y=29z=−1047
x=92y=575z=−585\begin{matrix}x=\frac{9}{2}&y=\frac{57}5&z=-\frac{58}{5}\end{matrix}x=29y=557z=−558
x=−5780y=3940z=−4740\begin{matrix}x=-\frac{57}{80}&y=\frac{39}{40}&z=-\frac{47}{40}\end{matrix}x=−8057y=4039z=−4047
x=−3370y=5135z=−5835\begin{matrix}x=-\frac{33}{70}&y=\frac{51}{35}&z=-\frac{58}{35}\end{matrix}x=−7033y=3551z=−3558
Type a concept, like “slope” or “photosynthesis”.
