Use an appropriate row operation or sequence of row operatio

Use an appropriate row operation or sequence of row operations to find the equivalent row-reduced matrix. (0 1 0 1 0 0 0 0 1 8 5 6)

Solution

Your matrix

Find the pivot in the 1st column and swap the 2nd and the 1st rows

Find the pivot in the 2nd column in the 2nd row

Find the pivot in the 3rd column in the 3rd row

solution

x1 = 5

x2 = 8

x3 = 6

	X1	X2	X3	b
1	0	1	0	8
2	1	0	0	5
3	0	0	1	6