Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
$$\left\{ \begin{array} { l }
7 x - 3 y - 9 z = 22 \
2 x + y + 3 z = - 3 \
2 x - 7 y - 3 z = - 17
\end{array} \right.$$
A) $x = - 1 , y = - 4 , z = - 3$
B) $x = 1 , y = - 4 , z = - 3$
C) $x = 1 , y = 4 , z = - 3$
D) $x = 4 , y = - 1 , z = 3$
E) no solution

Question

Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
$$\left\{ \begin{array} { l } 
7 x - 3 y - 9 z = 22 \
2 x + y + 3 z = - 3 \
2 x - 7 y - 3 z = - 17
\end{array} \right.$$
A) $x = - 1 , y = - 4 , z = - 3$
B) $x = 1 , y = - 4 , z = - 3$
C) $x = 1 , y = 4 , z = - 3$
D) $x = 4 , y = - 1 , z = 3$
E) no solution

Quizplus · Accepted Answer

The Answer of Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
$$\left\{ \begin{array} { l } 
7 x - 3 y - 9 z = 22 \
2 x + y + 3 z = - 3 \
2 x - 7 y - 3 z = - 17
\end{array} \right.$$
A) $x = - 1 , y = - 4 , z = - 3$
B) $x = 1 , y = - 4 , z = - 3$
C) $x = 1 , y = 4 , z = - 3$
D) $x = 4 , y = - 1 , z = 3$
E) no solution

Use Matrices to Solve the System of Equations (If Possible) {7x−3y−9z=222x+y+3z=−32x−7y−3z=−17\left\{ \begin{array} { l } 7 x - 3 y - 9 z = 22 \\2 x + y + 3 z = - 3 \\2 x - 7 y - 3 z = - 17\end{array} \right.⎩⎨⎧​7x−3y−9z=222x+y+3z=−32x−7y−3z=−17​

Use Matrices to Solve the System of Equations (If Possible) $\left\{ \begin{array} { l } 7 x - 3 y - 9 z = 22 \\2 x + y + 3 z = - 3 \\2 x - 7 y - 3 z = - 17\end{array} \right.$