Solve Using Substitution $$\left\{ \begin{array} { c } x - 4 z = 7 \\7 x + y + 6 z = 84 \\y + 3 z = 9\end{array} \right.$$

question 9

Essay

Solve using substitution: $$\left\{ \begin{array} { c } x - 4 z = 7 \\7 x + y + 6 z = 84 \\y + 3 z = 9\end{array} \right.$$

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Definitions:

Sublimation

A defense mechanism in which socially unacceptable impulses or idealizations are transformed into socially acceptable actions or behavior.

Fight-or-flight Response

A physiological reaction to perceived harmful events, attacks, or threats to survival, initiating a state of heightened readiness for physical action.

Adrenal Glands

Small, triangular glands located on top of both kidneys that produce hormones that help regulate metabolism, immune system, blood pressure, response to stress, and other essential functions.

Stress Hormones

Chemical substances produced by the body, like cortisol and adrenaline, that increase in response to stress, affecting physiological reactions.