Give the geometric description of the following system of eq
     Give the geometric description of the following system of equations.  5x + 3y - 5z = 5  4x + 5y - z = -5  -31x - 29y + 19z = 2  5x + 20y + 44z = 9  -2x - 9y - 20z = 2  3x + 12y + 27z = 3. 
  
  Solution
(1) Here,
the system of equations do not have any point of intersection though each equation represents a plane.
(2) Here,
the system of equations of planes intersect at the point (21, 4, -4).

