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5a + 3j = 79.000 / x2 / 10a + 6j = 158.000
3a + 2j = 49.000 / x3 / 9a + 6j = 147.000 _
a = 11.000
jadi harga 1kg apel adalah Rp 11.000
3a +2j= 49000 ⇒×3 ⇔ 9a + 6j =147000 ↓-
=10a - 9a = 158000 - 147000
= 1a =11000