code: def process(self, statement, additional_response_selection_parameters=None):
          
          from mathparse import mathparse
  
          input_text = statement.text
  
          # Use the result cached by the process method if it exists
          if input_text in self.cache:
              cached_result = self.cache[input_text]
              self.cache = {}
              return cached_result
  
          # Getting the mathematical terms within the input statement
          expression = mathparse.extract_expression(input_text, language=self.language.ISO_639.upper())
  
          response = Statement(text=expression)
  
          try:
              response.text += ' = ' + str(
                  mathparse.parse(expression, language=self.language.ISO_639.upper())
              )
  
              # The confidence is 1 if the expression could be evaluated
              response.confidence = 1
          except mathparse.PostfixTokenEvaluationException:
              response.confidence = 0
  
          return response
docs: Takes a statement string.
          Returns the equation from the statement with the mathematical terms solved.