- #1

sheldonrocks97

Gold Member

- 66

- 2

## Homework Statement

In each part, the reduced echelon form of the augmented matrix of a system of linear

equations is given. Find all solutions to the original system.

a.

[1 0] [2]

[0 1] [5]

b.

[1 0] [2]

[0 0] [1]

c.

[1 0] [2]

[0 0] [0]

d.

[1 2 0 1] [2]

[0 0 1 1] [5]

## Homework Equations

None

## The Attempt at a Solution

I know that a.) is already in reduced row echelon form. I just don't understand how to get the last four, because the second and third don't have ones other than in 1 corner.