Use Matrices to Solve the System of Equations (If Possible) $$\left\{ \begin{aligned}x - 3 z & = - 7 \\3 x + y - 2 z & = 2 \\2 x + 2 y + z & = 4\end{aligned} \right.$$

question 92

Multiple Choice

Use matrices to solve the system of equations (if possible) .Use Gaussian elimination with back-substitution or Gauss-Jordan elimination. $$\left\{ \begin{aligned}x - 3 z & = - 7 \\3 x + y - 2 z & = 2 \\2 x + 2 y + z & = 4\end{aligned} \right.$$

• A)(-5, -5, 4)
• B) (5, -5, -4)
• C) (-5, -5, -4)
• D) (5, 5, 4)
• E) (5, -5, 4)

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