Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations.
$$\left\{ \begin{array} { r }
x + 2 y - z = - 9 \
2 x - 2 y - 2 z = 0 \
- x + 3 y + 4 z = 0
\end{array} \right.$$

Question

Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations.
​ $$\left\{ \begin{array} { r } 
x + 2 y - z = - 9 \
2 x - 2 y - 2 z = 0 \
- x + 3 y + 4 z = 0
\end{array} \right.$$ ​

Quizplus · Accepted Answer

The Answer of Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations.
​ $$\left\{ \begin{array} { r } 
x + 2 y - z = - 9 \
2 x - 2 y - 2 z = 0 \
- x + 3 y + 4 z = 0
\end{array} \right.$$ ​

Use a Graphing Utility and Cramer's Rule to Solve (If {x+2y−z=−92x−2y−2z=0−x+3y+4z=0\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.⎩⎨⎧​x+2y−z=−92x−2y−2z=0−x+3y+4z=0​

Use a Graphing Utility and Cramer's Rule to Solve (If $\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.$