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Ayam = a
Kambing = k
Diket :
a + k = 13 ekor → a = 13 - k
2a + 4k = 38
Ditanyakan :
Jumlah kambing
Jawab :
2a + 4k = 38
2 (13 - k) + 4k = 38
26 - 2k + 4k = 38
2k = 12
k = 6 ekor
Jadi, banyak kambing yang ada di ladang tersebut adalah 6 ekor
# Maaf kalau salah