Use the Substitution Method to Solve the Following System $$\left\{ \begin{array} { c } 7 a + 9 b = 69 \\a = 21 - 5 b\end{array} \right.$$

question 44

Multiple Choice

Use the substitution method to solve the following system. If the equations of the system are dependent, or if the system is inconsistent, so indicate. $$\left\{ \begin{array} { c } 7 a + 9 b = 69 \\a = 21 - 5 b\end{array} \right.$$

• A) \(( 6,3 )\)
• B) \(( 6 , - 3 )\)
• C) \(( - 6,3 )\)
• D)The equations are dependent.
• E)The system is inconsistent.

---

Definitions:

Convey Interest

To communicate or express one's enthusiasm or curiosity about a subject or object.

Post Interview Messages

Communications sent after a job interview, often expressing gratitude for the opportunity, reiterating interest in the position, and reinforcing qualifications.

Key Points

Key Points are the main or most important ideas, issues, or items in a discussion or presentation.

Offer of Employment

An offer of employment is a proposal provided by an employer to a potential employee outlining the terms of employment, including position details, salary, and start date.