A process to turn a Augmented Matrix into REF to find solutions. https://www.youtube.com/watch?v=seet9VyHo3Q
Process

- Locate the left-most column with the first non-zero entry

- Swap the top-most row with the non-zero entry row

- Multiply the row so that the non-zero entry is equal to one

- Add suitable multiples of the top row to the bottom row until all entries below are equal to 0

- Mark the top-most row as completed, now continue the process for the bottom rows
