Solve Linear Systems by Addition
- $$\begin{array} { l } 2 x + 15 y = - 91 \\9 x + 3 y = 42\end{array}$$

question 166

Multiple Choice

Solve Linear Systems by Addition
- $$\begin{array} { l } 2 x + 15 y = - 91 \\9 x + 3 y = 42\end{array}$$

• A) \(\{ ( 7 , - 7 ) \}\)
• B) \(\{ ( - 7,7 ) \}\)
• C) \(\{ ( 9 , - 9 ) \}\)
• D) \(\{ ( - 3,7 ) \}\)

---

Definitions:

Mounted

Refers to the status of a storage device when it is accessible to the operating system after being connected or inserted.

Operating System

The software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.

BIOS

Basic Input/Output System, a software stored on a small memory chip on the motherboard, responsible for booting the computer and managing data flow between the computer's operating system and attached devices.

Head Crashes

A failure in hard disk drives when the read-write head comes into contact with the spinning disk surface, leading to data loss or damage.