I am trying to put in row reduced echelon form the following matrix $ $ \left( \begin{array}{ccc} -0.1 & 0.1 & 2 \ 0.3 & 0.2 & 0 \ 0 & 0.5 & 6.7 \ \end{array} \right) $ $ I did the calculations by hand, and being a fairly simple matrix to reduce, I wantedRead more