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SPL 3 VARIABEL
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a – 4b – 4c = 3 2a + 9b + c = 13 -a + 3b + 2c = 1
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Pilih satu variabel yg akan di-eliminasi
a – 4b – 4c = 3 2a + 9b + c = 13 -a + 3b + 2c = 1 Pilih satu variabel yg akan di-eliminasi Contoh: ambil “a”
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a – 4b – 4c = 2a + 9b + c = -a + 3b + 2c =
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a – 4b – 4c = 2a + 9b + c = -a + 3b + 2c = a – 4b – 4c = 3 –a + 3b + 2c = 1 + –b – 2c =
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2a + 9b + c = 13 x 2 –2a + 6b + 4c = 2 +
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2a + 9b + c = 13 x 2 –2a + 6b + 4c = 2 +
bagi 5 3b + c =
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–b – 2c = 4 –b – 2c = 4 3b + c = 3 x 2 6b + 2c = 6 +
3.2 + c = 3 c = –3
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a – 4b – 4c = 3 a – – 4.(–3) = 3 a = –1 Jadi: a = –1 , b = 2 , c = –3
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