What will this code output for the given 2×2 system?

import numpy as np 

A = np.array([[3, 2], [1, 4]])

b = np.array([7, 6])

det_A = np.linalg.det(A)

A1 = np.array([[7, 2], [6, 4]])

det_A1 = np.linalg.det(A1)

x1 = det_A1 / det_A

print(f"x1 = {x1}")