Solve the System $$\left( \begin{array} { r l } x + 2 y - z & = 9 \\x + 3 y + 2 z & = 11 \\- x - 3 y - 2 z & = - 11\end{array} \right)$$

question 51

Multiple Choice

Solve the system. $$\left( \begin{array} { r l } x + 2 y - z & = 9 \\x + 3 y + 2 z & = 11 \\- x - 3 y - 2 z & = - 11\end{array} \right)$$

• A) \(( 7 k + 5 , - 3 k + 2 , k )\) , \(k\) is a real number
• B) \(( 6 k + 6 , - 2 k + 2 , k )\) , \(k\) is a real number
• C) \(( 7 k + 5 , - 2 k + 2 , k )\) , \(k\) is a real number
• D) \(( 6 k + 6 , - 3 k + 2 , k )\) , \(k\) is a real number
• E) \(( 6 k + 5 , - 3 k + 2 , k )\) , \(k\) is a real number

---

Definitions:

Memory Test

A method or examination to measure the ability of an individual to recall or recognize information.

Paired T-test

A statistical method used to compare two related samples, such as measurements before and after a specific treatment, to determine if there are significant differences.

Music Affect

Refers to how music influences emotions, behaviors, and cognitive processes in individuals.

Dexterity Tests

Assessments designed to evaluate the fine motor skills, hand-eye coordination, and agility of an individual.