input: 
  def solve_linear_equation_system(a, b, c):
      """
      Solve a linear equation system of the form ax + by = c.
      >>> solve_linear_equation_system(2, 1, 4)
      2.0, 2.0
      """
  
output:     if a == 0 and b == 0:
          if c == 0:
              return "Infinite solutions"
          else:
              return "No solution"
      elif a == 0:
          y = c / b
          return "x can be any value, y =", y
      elif b == 0:
          x = c / a
          return "y can be any value, x =", x
      else:
          x = (c - b * (c / b)) / a
          y = (c - a * x) / b
          return x, y