Use Matrices to Solve the System of Linear Equations Below $\left\{ \begin{array} { r } x - 2 z = 7 \\4 x - 4 y - z = 9 \\x - 2 y - 3 z = 20\end{array} \right.$

question 6

Multiple Choice

Use matrices to solve the system of linear equations below.
$\left\{ \begin{array} { r } x - 2 z = 7 \\4 x - 4 y - z = 9 \\x - 2 y - 3 z = 20\end{array} \right.$

• A) \(( - 3 , - 4 , - 5 )\)
• B) \(( - 5 , - 4 , - 3 )\)
• C) \(( - 3 , - 5 , - 4 )\)
• D) \(( - 4 , - 5 , - 3 )\)
• E) \(( 1,5,4 )\)

---

Definitions:

Probability

The assessment of an event's occurrence likelihood, marked numerically between 0 and 1.

Basketball Player

An individual who participates in the sport of basketball.

HIV Virus

Incorrectly redundant term; HIV stands for Human Immunodeficiency Virus, which causes acquired immunodeficiency syndrome (AIDS) and interferes with the body's ability to fight infections.

Standard Deviation

A numerical value that represents the extent of spread or variability among a set of data points.