
SPLDV cara Eliminasi
Presentation
•
Mathematics
•
8th Grade
•
Hard
Hafizhah Hafizhah
FREE Resource
4 Slides • 0 Questions
1
Penyelesaian spldv
2
2. Metode Eliminasi
Contoh :
Tentukan HP dari sistem Persamaan 2x + 5y = 8 dan 3x - 2y = -7, x dan y ϵ R dengan metode eliminasi!
3
Jawab :
Nilai x dapat dicari dengan mengeliminasi y
2x + 5y = 8 dikali 2
3x - 2y = -7 dikali 5
4x + 10y = 16
15x - 10y = -35 +
19x = -19
x = -1
4
Nilai y dapat dicari dengan mengeliminasi x
2x + 5y = 8 dikali 3
3x - 2y = -7 dikali 2
6x + 15y = 24
6x - 4y = -14 +
19y = 38
y = 2
Jadi, himpunan penyelesaian dari sistem persamaan linier 2x + 5y = 8 dan 3x - 2y = -7 adalah {(-1, 2)}
Penyelesaian spldv
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