The reduced row echelon form of a system of linear equations
     The reduced row echelon form of a system of linear equations is given. Write the system of equations corresponding to the given matrix. Use x and y as variables. Determine whether the system is consistent or inconsistent. If it is consistent, give the solution.  matrix  What equation does the first row represent?  (Type an equation.) 
  
  Solution
The syetme of equation correspodning to this :
x = 3
y =9
System has a unique solution and is consistent
the first ro gives the solution for x=3

