Linsys find
    
      --- Introduction ---
    
  
 
Linsys find
is an exercise that asks you to establish a linear system
  according to texts of various styles, in particular systems having
  infinitely many solutions.
Note that you can also use the exercise
Equaffine  for establishing systems defining affine subspaces
  (line, plane, hyperplane, etc).
The exercises will be taken randomly in the list of
  your choice. If your choice is empty, all the available exercises
  will be considered.
  
        The most recent version
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    - Description: establish a linear system according to a word problem. interactive exercises, online calculators and plotters, mathematical recreation and games
 
    - Keywords: interactive mathematics, interactive math, server side interactivity, linear_algebra, linear_system, matrix, polynomials, variables,modelling