Solve Linear Systems by Addition
- $$\begin{array} { r } 6 x + 2 y = - 6 \\- 6 x - 9 y = 48\end{array}$$

question 109

Multiple Choice

Solve Linear Systems by Addition
- $$\begin{array} { r } 6 x + 2 y = - 6 \\- 6 x - 9 y = 48\end{array}$$

• A) \(\{ ( 1 , - 6 ) \}\)
• B) \(\{ ( - 1,6 ) \}\)
• C) \(\{ ( - 1 , - 6 ) \}\)
• D) \(\varnothing\)

---

Definitions:

Neural-feedback

A process through which information about the output of a neural system is returned to it, to adjust its future output and behavior.

Positive-feedback

A biological mechanism whereby a stimulus intensifies the production of a product, leading to an amplification effect in the system.

Lipid-soluble Hormones

Hormones that can pass through the lipid bilayer of cell membranes and are usually transported in the bloodstream bound to carrier proteins.

Cytoplasm

The jelly-like substance within a cell that contains all organelles and cell parts, excluding the nucleus.