Solve the System of Equations Using Substitution $$\left\{ \begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array} \right.$$

question 148

Multiple Choice

Solve the system of equations using substitution.
- $$\left\{ \begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array} \right.$$

• A) \(x = - 5 , y = - 1 ; x = 8 , y = \frac { 11 } { 2 }\)
• B) \(x = - 5 , y = - 1 ; x = \frac { 11 } { 2 } , y = 8\)
• C) \(x = 5 , y = 1 ; x = - \frac { 11 } { 2 } , y = - 8\)
• D) \(x = 5 , y = 1 ; x = - 8 , y = - \frac { 11 } { 2 }\)

---

Definitions:

Transmission Controller

A device responsible for managing the operation of a vehicle's transmission, ensuring optimal performance and efficiency.

Truck Data Bus

A network inside the vehicle that allows electronic components and systems to communicate with each other.

SAE J1939 Bus

A communications network protocol based on CAN (Controller Area Network) designed for heavy-duty vehicles, allowing electronic devices to communicate with each other without a host computer.

Data Connector

Hardware used to link computers and devices for the purpose of data communication, ensuring the transfer of information between systems.