Solve the System of Equations by Using Substitution $$\left\{ \begin{array} { r } x + 7 y = - 2 \\3 x + y = 34\end{array} \right.$$

question 25

Multiple Choice

Solve the system of equations by using substitution.
- $$\left\{ \begin{array} { r } x + 7 y = - 2 \\3 x + y = 34\end{array} \right.$$

• A) \(x = - 2 , y = 3\)
• B) \(x = 7 , y = 12\)
• C) \(x = 12 , y = - 2\)
• D) \(x = 3 , y = 7\)

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Definitions:

Conversion Control Sequences

In programming, sequences of characters in formatted string operations that specify how types of variables are converted for input or output.

Conversion Specifications

Descriptions in a format string that determine how a value should be formatted or converted into a string.

Format Specifiers

Symbols used in various programming languages to specify the type of data to be formatted and displayed.

Control Specifier

A component in formatted input/output functions in languages like C, specifying the type of data to be inputted or outputted.