Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations. $$\left\{ \begin{array} { r }
x + 2 y - z = - 5 \
2 x - 2 y - 2 z = - 4 \
- x + 3 y + 4 z = 6
\end{array} \right.$$
A)(-1, -1, 2)
B)(-1, -1, -1)
C)(-1, 1, -2)
D)(-1, -1, -2)
E)(-1, 1, 2)

Question

Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations.   $$\left\{ \begin{array} { r } 
x + 2 y - z = - 5 \
2 x - 2 y - 2 z = - 4 \
- x + 3 y + 4 z = 6
\end{array} \right.$$  
A)(-1, -1, 2)
B)(-1, -1, -1)
C)(-1, 1, -2)
D)(-1, -1, -2)
E)(-1, 1, 2)

Quizplus · Accepted Answer

The Answer is A

Use a Graphing Utility and Cramer's Rule to Solve (If {x+2y−z=−52x−2y−2z=−4−x+3y+4z=6\left\{ \begin{array} { r } x + 2 y - z = - 5 \\2 x - 2 y - 2 z = - 4 \\- x + 3 y + 4 z = 6\end{array} \right.⎩⎨⎧​x+2y−z=−52x−2y−2z=−4−x+3y+4z=6​

Use a Graphing Utility and Cramer's Rule to Solve (If $\left\{ \begin{array} { r } x + 2 y - z = - 5 \\2 x - 2 y - 2 z = - 4 \\- x + 3 y + 4 z = 6\end{array} \right.$