This link gives a RREF calculator with how each step is performed.

Syllabus

Hmrk1 - Hmrk2 - Hmrk3 - Hmrk4 - Hmrk5 - Hmrk6

Hmrk7 - Hmrk8 - Hmrk9 - Hmrk10 - Hmrk11 - Hmrk12

Quiz1(Sol) - Quiz2(Sol) - Quiz3(Sol) - Quiz4(Sol) - Quiz5(Sol) - Quiz6(Sol) - Quiz7(Sol)

Quiz8(Sol) - Quiz9(Sol)

1.4 #45a Sol

Midterm 1 Solution

Midterm 2 Solution

Final review

Final Exam (Sol)