Perform the Indicated Elementary Row Operations A) $\left[\begin{array}{rrr}-3 & 7 & 1 \\63 & 53 & -40 \\10 & 8 & -5\end{array}\right]$

Perform the indicated elementary row operations.
- $\begin{array}{l}\text { (6) } \mathrm{R}_{2}+\mathrm{R}_{3}\\\left[\begin{array}{rrr}-3 & 7 & 1 \\3 & 5 & -10 \\10 & 8 & -5\end{array}\right]\end{array}$

A) $\left[\begin{array}{rrr}-3 & 7 & 1 \\63 & 53 & -40 \\10 & 8 & -5\end{array}\right]$

B) $\left[\begin{array}{rrr}-3 & 7 & 8 \\3 & 5 & -5 \\10 & 8 & 3\end{array}\right]$

C) $\left[\begin{array}{rrr}-3 & 7 & 43 \\3 & 5 & 20 \\10 & 8 & 43\end{array}\right]$

D) $\left[\begin{array}{rrr}-3 & 7 & 1 \\3 & 5 & -10 \\28 & 38 & -65\end{array}\right]$

Correct Answer:

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