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1. Eliminasi Murni
Ix2 I
Ix3 I
--------------------- +
13y = 39
y = 3
Ix3 I
Ix2 I
---------------------------- -
13x = 26
x = 2
2. Subtitusi
,,pers 1
..pers 2
pers 1 --> pers 2
pers 1 :
3. Carmel
Δ =
det Δ =
Δx =
det Δx=
Δy =
det Δy=
4. Grafik : lihat lampiran
HP {x= 2, y = 3}
(2) -
(2) -2x + 3y = 5
-2.2 + 3y = 5
3y = 5 + 4
y = 9/3 = 3
jadi, x = 2 dan y =3