Your report must include the problems, result and the Matlab/Freemat code follow at the end of the report. Write Matlab/Freemat code to compute the following 1. A row echelon form of any 3x4 matrix 2. A reduce row echelon form of any 3x4 matrix (you can NOT use the ref) or rref) command) 3. Note, this is should be only ONE code and should work for three problems below. Use ONLY ONE co above to solve the following system of equations: 3r 221 7r1 - 2r2 It has to include the source code of Matlab or Freemat. The same code should be able to solve the thre systems of equation above. Go to Settin