Solve the System of Equations by Using Substitution $$\left\{ \begin{array} { l } 3 x + y = 13 \\2 x + 9 y = - 8\end{array} \right.$$

question 106

Multiple Choice

Solve the system of equations by using substitution.
- $$\left\{ \begin{array} { l } 3 x + y = 13 \\2 x + 9 y = - 8\end{array} \right.$$

• A) x = 5, y = 2
• B) x = -5, y = -2
• C) x = -5, y = 2
• D) x = 5, y = -2

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Definitions:

Ratio Data

A type of quantitative data that not only offers order and equal intervals between values but also has a natural zero point, enabling ratios to be calculated.

Nominal Data

Data categorized into distinct groups without any inherent order or ranking among the categories.

Specified Measure

A particular metric or standard defined for the purpose of evaluation, assessment, or calculation within a given context.

Natural Zero

A point on a scale that indicates the absence of the quantity being measured, indicating a true zero point where the measured phenomenon is nonexistent.