Perform the Indicated Elementary Row Operations $$\begin{array} { l } ( - 3 ) \mathrm { R } _ { 1 } \\{ \left[ \begin{array} { r r } 5 & 3 \\7 & - 6\end{array} \right] }\end{array}$$

question 227

Multiple Choice

Perform the indicated elementary row operations.
- $$\begin{array} { l } ( - 3 ) \mathrm { R } _ { 1 } \\{ \left[ \begin{array} { r r } 5 & 3 \\7 & - 6\end{array} \right] }\end{array}$$

• A)
• \(\left[ \begin{array} { r r } - 15 & - 9 \\ 7 & - 6 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { r r } 15 & 9 \\ 7 & - 6 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { l l } - 15 & - 9 \\ - 21 & 18 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r } 5 & 3 \\ - 21 & 18 \end{array} \right]\)

---

Definitions:

Return Receipt Requested

A postal service feature that provides the sender with proof of delivery, typically through a notice that the recipient has received the item.

Urgent Message

A communication that requires immediate attention and action.

Recipient

The person or entity that receives something.

Lean Medium

A communication channel characterized by its efficiency and directness, often requiring minimal resources to convey a message.