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2a + 4k = 70 / a + 2k = 35
A+ k = 25
a + 2k = 35 di kurang
Jadi persamaan k = 10
Substitusi ke a + 10 = 25
A = 15
Ayam = 15 ekor
Kucing = 10 ekor
banyak kucing = K
kaki ayam = 2
kaki kucing = 4
A + K = 25
(A×2) + (K×4) = 70
2A + 4K = 70
A + K = 25
↓tiap ruas dikali 2↓
2A + 2K = 50
subtitusikan
2A + 4K = 70
2A + 2K = 50 -
2K = 20
K = 20/2
= 10
A + K = 25
A + 10 = 25
A = 25 - 10
= 15
banyak ayam = 15 ekor
kucing = 10 ekor
membantu? jgn lupa jadikan terbaik yaaa><