Write the System of Equations Associated with the Augmented Matrix $$\left[ \begin{array} { l l l | l } 1 & 0 & 0 & 7 \\0 & 1 & 0 & 1 \\0 & 0 & 1 & 5\end{array} \right]$$

question 424

Multiple Choice

Write the system of equations associated with the augmented matrix. Do not solve.
- $$\left[ \begin{array} { l l l | l } 1 & 0 & 0 & 7 \\0 & 1 & 0 & 1 \\0 & 0 & 1 & 5\end{array} \right]$$

• A) \(x = - 7\)
• \(y = - 1\)
• \(z = - 5\)
• B) \(x = 0\)
• \(y = 8\)
• \(\mathrm { z } = 12\)
• C) \(x = 7\)
• \(y = 1\)
• \(z = 5\)
• D) \(x = 2\)
• \(y = - 4\)
• \(z = 0\)

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