input: from typing import Tuple
  
  def linear_eq(a: int, b: int, c: int) -> Tuple[float, float]:
      """
      Calculates the objective function of a linear equation ax + by = c.
      Returns a tuple containing the values of (a*x + b*y - c) as the result.
      
      Example:
      >>> linear_eq(3, 5, 7)
      (0.0, 0.0)
      """
output:     x = 1.0
      y = 1.0
      result1 = a * x + b * y - c
      x = 2.0
      y = 2.0
      result2 = a * x + b * y - c
      return (result1, result2)