Jawab:
x = 4 dan y = -3
Penjelasan dengan langkah-langkah:
(1/2)x + (1/3)y = 1 | ×2 | x + (2/3)y = 2
(3/4)x - (2/3)y = 5 | ×1 | (3/4)x - (2/3)y = 5
_____________ +
x + (3/4)x = 7
(4/4)x + (3/4)x = 7
(7/4)x = 7
x = 4
x + (2/3)y = 2
4 + (2/3)y = 2
(2/3)y = 2 - 4
(2/3)y = -2
y = -3
Jadi x = 4 dan y = -3.
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Jawab:
x = 4 dan y = -3
Penjelasan dengan langkah-langkah:
(1/2)x + (1/3)y = 1 | ×2 | x + (2/3)y = 2
(3/4)x - (2/3)y = 5 | ×1 | (3/4)x - (2/3)y = 5
_____________ +
x + (3/4)x = 7
(4/4)x + (3/4)x = 7
(7/4)x = 7
x = 4
x + (2/3)y = 2
4 + (2/3)y = 2
(2/3)y = 2 - 4
(2/3)y = -2
y = -3
Jadi x = 4 dan y = -3.