Solve the System Using the Inverse Matrix $\begin{aligned}x + 3 y + z & = 19 \\x + y + z & = 7 \\4 x + y + z & = 25\end{aligned}$

question 48

Multiple Choice

Solve the system using the inverse matrix. $\begin{aligned}x + 3 y + z & = 19 \\x + y + z & = 7 \\4 x + y + z & = 25\end{aligned}$

• A) \(x = 9\) , \(y = 4\) , \(z = - 6\)
• B) \(x = 4\) , \(y = 5\) , \(z = - 2\)
• C) \(x = 5\) , \(y = 9\) , \(z = - 7\)
• D) \(x = 6\) , \(y = 6\) , \(z = - 5\)
• E) The system is inconsistent.

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