Solve the System by the Substitution Method $$\left\{ \begin{array} { r } 5 x - 2 y = - 1 \\x + 4 y = 35\end{array} \right.$$

question 1

Multiple Choice

Solve the system by the substitution method.
- $$\left\{ \begin{array} { r } 5 x - 2 y = - 1 \\x + 4 y = 35\end{array} \right.$$

• A) \(\{ ( 3,8 ) \}\)
• B) \(\{ ( 3,9 ) \}\)
• C) \(\{ ( x , y ) \mid x + 4 y = 35 \}\)
• D) \(\varnothing\)

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Definitions:

LH

Luteinizing hormone, a hormone produced by the anterior pituitary gland that plays a key role in regulating the reproductive system.

Hormones

are chemical messengers produced by endocrine glands, which regulate various physiological processes and behaviors throughout the body.

Regulatory System

A set of interconnected components designed to monitor and adjust a system's performance to maintain its stability or homeostasis.

Chemical Secretions

Chemical secretions refer to substances produced and released by cells or glands, which can serve various functions such as signaling, protection, or digestion.