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Verified answer
Materi : Program LinearBahasan : Persamaan Linear 2 Variabel
Jawaban : HP = {2, 3}
Langkah - langkah :
6a + 3b = 21 (x4) 24a + 12b = 84
7a - 4b = 2 (x3) 21a - 12b = 6
----------------------------------------------- +
24a + 21a = 84 + 6
45a = 90
a = 2
Substitusi a :
7(2) - 4b = 2
14 - 4b = 2
- 4b = 2 - 14
- 4b = - 12
b = 3