$\left\{ \begin{array} { c } x - y + 3 z = - 8 \\2 x + z = 0 \\x + 5 y + z = 40\end{array} \right.$

question 193

Multiple Choice

$\left\{ \begin{array} { c } x - y + 3 z = - 8 \\2 x + z = 0 \\x + 5 y + z = 40\end{array} \right.$

• A) x=0, y=8, z=0
• B) x=0, y=-8, z=-8
• C) x=8, y=8, z=0
• D) x=-8, y=0, z=0

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Definitions:

Elaboration

The process of adding more information to existing, often simpler, information to create a more complex understanding.

Reverberation

The persistence of a sound in a particular space after the original sound is produced, often used metaphorically to describe a lasting effect or influence.

Self-efficacy

The belief in one's own ability to succeed in specific situations or accomplish a task.

Self-references

An individual's practice of relating information or situations back to oneself, often a cognitive process related to memory and identity.