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Diketahui :Jumlah hewan : 75 ekor
Jumlah kaki hewan : 198
Kaki ayam : 2
kaki kambing : 4
Ditanya?
Jumlah kambing
Cara :
a + k = 75.......................×2
2a + 4k = 198............... × 1
2a + 2k = 150
2a + 4k = 198
-------------------- -
- 2k = -48
k = -48 / -2
k = 24 ekor
jadi jumlah kambing tersebut sebanyak 24ekor
(A.)
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