Directions: Use the following matrix to perform the elementary row operations sequentially.

Question

A=[3 2 |8]
[5 2 |12]

1.) (1/3) R1 From the original matrix
2.) -5R1+R R2 From matrix in question 1.

Answer 1

1/3 R1 is [1 2/3 | 8/3]

-5R1 + R2 is
[-5 -10/3 | -40/3]
+[5 2 | 12]
= [0 -4/3 | 8/3]

If things are garbled, fix 'em.