Solve the System by the Addition Method $$\left\{ \begin{array} { l } 5 x - 2 y = - 1 \\7 x + 4 y = 53\end{array} \right.$$

question 101

Multiple Choice

Solve the system by the addition method.
- $$\left\{ \begin{array} { l } 5 x - 2 y = - 1 \\7 x + 4 y = 53\end{array} \right.$$

• A) \(\varnothing\)
• B) \(\{ ( 3,8 ) \}\)
• C) \(\{ ( 3,9 ) \}\)
• D) \(\{ ( x , y ) \mid 5 x - 2 y = - 1 \}\)

---

Definitions:

Independent Variable

The variable in an experiment that is manipulated to observe its effect on the dependent variable.

Testable

Referring to a hypothesis or theory that can be examined through experimental or observational methods to determine its validity.

Behavior

The actions or reactions of an object or organism, usually in relation to the environment.

Gestalt Psychologists

Psychologists who emphasize the holistic approach to understanding the mind, suggesting that psychological phenomena should be viewed as organized, structured wholes.