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Bab Program LinearMatematika SMA Kelas XI
garis miring
4x + (5/2) y = (4 . 5/2)
**semua dikalikan 2**
8x + 5y = 20
x = 2/3
titik potong
8x + 5y = 20
8 . 2/3 + 5y = 20
5y = 20 - 16/3
5y = 60/3 - 16/3
y = 44/(5 . 3)
y = 44/15
titik potong = (2/3, 44/15)
terdapat 2 titik potong, yaitu
(2/3, 44/15) dan (5/2, 0)
z = (2x - y)/3
z = (2 . 5/2 - 0)/3
z = 5/3
z = (2 . 2/3 - 44/15)/3
z = (20/15 - 44/15)/3
z = (-24/15) . 1/3
z = -8/15