import numpy as np print (""" | 1 1 -1 | | 9 | | 1 1 -1 9 | A= | 0 1 3 | X | 3 | A = | 0 1 3 3 | |-1 0 -2 | | 2 | |-1 0 -2 2 | """) a=1; b=1; c=-1; x=9 d=0; e=1; f=3; y=3 g=-1; h=0; i=-2;z=2 print("") arr = np.array([[ a, b, c, x ], [ d, e, f, y ], [ g, h, i, z ]]) print (arr) print("Bentuk Matriks yang diperbesar dari SPL diatas") print("") print("") print("B3 + (1*B1)") arr0 = arr[2] + (1*arr[0]) arr[2] = arr0 print(arr) print("") print("B1 - (1*B2)") arr1 = arr[0] - (1*arr[1]) arr[0] = arr1 print(arr) print("") print("B3 - (1*B2)") arr2 = arr[2] - (1*arr[1]) arr[2] =...