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] = arr2
print(arr)
print("")
print("B3 /-6")
arr3 = arr[2]/-6
arr[2] = arr3
print (arr)
print("")
print("")
print ("""
x + y - z =""",arr[0,3],"""
y + 3z =""",arr[1,3],"""
z =""",arr[2,3],"""
""")
print("")
print("")
z=arr[2,3]
print("untuk z = ",z)
y=arr[1,3] - (arr[1,2]*arr[2,3])
print("untuk y = ",y)
x=arr[0,3] - (arr[0,2]*z)
print("untuk x = ", x)
print("jadi pemecahan untuk SPL diatas adalah X,Y dan Z",x,y,z)
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