Tentukan penyelesaian sustem persamaan linear tsb, 1/2x - 1/3y = -1 3/4y - 2x = -5/4
Matematika
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Pertanyaan
Tentukan penyelesaian sustem persamaan linear tsb,
1/2x - 1/3y = -1
3/4y - 2x = -5/4
1/2x - 1/3y = -1
3/4y - 2x = -5/4
1 Jawaban
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1. Jawaban Anonyme
jawab
1/2 x - 1/3 y = - 1 || kali 6
3x - 2y = - 6
-2x + 3/4 y = - 5/4 || kali 4
-8x + 3y = - 5
3x - 2y = -6 ||kali 3
-8x + 3y = - 5|| kali 2
9x - 6y = - 18
-16x + 6y = - 10||(+)
-7y = - 28
y = 4
3x - 2y = -6
3x = 2y - 6
3x = 2(4) - 6
3x = 2
x = 2/3