Solve a System of Linear Equations in Three Variables Using $$\begin{array} { r } 4 x + 3 y - z = 19 \\x - 5 y + 2 z = - 6 \\2 x + y + z = 19\end{array}$$

question 87

Multiple Choice

Solve a System of Linear Equations in Three Variables Using Cramer's Rule
- $$\begin{array} { r } 4 x + 3 y - z = 19 \\x - 5 y + 2 z = - 6 \\2 x + y + z = 19\end{array}$$

• A) \(\{ ( 3,5,8 ) \}\)
• B) \(\{ ( 5,8,5 ) \}\)
• C) \(\{ ( 3 , - 5 , - 8 ) \}\)
• D) \(\{ ( 4,3,8 ) \}\)

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Definitions:

Line Length

A measurement that represents the distance from one end of a line to the other end.

Automatic Processing

The unconscious and involuntary operations of the mind that enable complex tasks or procedures to be performed without conscious thought.

Controlled Processing

Involves conscious, deliberate decision making and thought, requiring attention and effort.

Mindfulness

A mental state achieved by focusing one's awareness on the present moment, while calmly acknowledging and accepting one's feelings, thoughts, and bodily sensations.