Solve the System of Equations by Using the Inverse of the Coefficient

question 4

Multiple Choice

Solve the system of equations by using the inverse of the coefficient matrix.
- $$\begin{array}{l}x-y+3 z=5 \\2 x+z=1 \\x+4 y+z=-7\end{array}$$

• A) \( (1,-2,0) \)
• B) \( (1,0,-2) \)
• C) \( (0,-2,1) \)
• D) No inverse, no solution for system

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