I need help with these Linear Algebra problems ) Much appreciated

Question

I need help with these Linear Algebra problems 🙂 Much appreciated.

Q1. Which of the following matrices are in the row echelon form? e and h
Q2. Which of the following matrices are in the reduced row echelon form? d and h
Q3. a)
y =7x + 2
=gt; y – 7x =2 =gt;…
Math