Identify the elementary row operation being performed to obtain the new row-equivalent matrix. Original $\mathrm { Mat } \mathrm { rix }~~~~~~~~~~$New Row-Equivalent Matrix
$\left[ \begin{array} { c c c }
6 & - 7 & - 6 \
7 & 6 & - 1
\end{array} \right]~~~~~$$\left[ \begin{array} { c c c }
20 & 5 & - 8 \
7 & 6 & - 1
\end{array} \right]$
A)Add 2 times R1 to R2.
B)Add -2 times R2 to R1.
C)Add -2 times R1 to R2.
D)Add 2 times R1 to R1.
E)Add 2 times R2 to R1.

Question

Identify the elementary row operation being performed to obtain the new row-equivalent matrix. Original $\mathrm { Mat } \mathrm { rix }~~~~~~~~~~$New Row-Equivalent Matrix
$\left[ \begin{array} { c c c } 
6 & - 7 & - 6 \
7 & 6 & - 1
\end{array} \right]~~~~~$$\left[ \begin{array} { c c c } 
20 & 5 & - 8 \
7 & 6 & - 1
\end{array} \right]$
A)Add 2 times R1 to R2.
B)Add -2 times R2 to R1.
C)Add -2 times R1 to R2.
D)Add 2 times R1 to R1.
E)Add 2 times R2 to R1.

Quizplus · Accepted Answer

The Answer is E

Identify the Elementary Row Operation Being Performed to Obtain the New