Question

Find the reduced row echelon form of the augmented matrix

Answer 1

Top row: [1 0 0 | 650}

Middle row: [0 1 0 | -400]

Bottom row: [0 0 1 | -1100]

Explanation:

When you put an augmented matrix in RREF for, you have to have only 1's diagonal and 0's everywhere else on the left side of the bar.