input: Write a function to explain the approach for solving a linear programming problem using the Simplex method in Python. The function should detail the steps involved, including defining the problem, converting to standard form, setting up the tableau, and iterating through the simplex algorithm. If the problem is not solvable or has no optimal solution, the function should indicate that as well.
  assert explain_simplex_method() == "The Simplex Method is an algorithm for solving a linear programming problem, which involves finding the maximum or minimum value of a linear function...(details of the steps follow, as given in the original text)."
  assert explain_simplex_method() == "To solve a linear programming problem using the Simplex Method in Python...(detailed steps as in the original text)."
  assert explain_simplex_method() == "Determine the optimum solution by inspecting the values in the tableau."
  assert explain_simplex_method() == "If the problem is not solvable or has no optimal solution, the function should indicate that as well."
  assert explain_simplex_method() == "The final output should provide a clear explanation of the Simplex method steps in Python."
output: def explain_simplex_method():
      return "The Simplex Method is an algorithm for solving a linear programming problem, which involves finding the maximum or minimum value of a linear function...(details of the steps follow, as given in the original text)."