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5a + 7j = 123
Diubah =>
15a + 25j = 425
15a + 21j = 369
dikurang => 4j =56
j = 56/ 4 = 14
jadi harga 1kg jeruk adalah 14.000
3a + 5j = 85
3a + 5(14) = 85
3a + 70 = 85
3a = 85-70
3a = 15
a = 15/ 3
a = 5
jadi harga 1kg apel adalah 5.000
5A + 7J = 123000 dikali 3
15A + 25J = 425000
15A + 21J = 369000
_________________ -
4J = 56.000
J = 56000/4
= 14000
3A + 5 J = 85000
3A + 5 (14000) = 85000
3A + 70000 = 85000
3A = 15000
A = 5000
A + J = 14000 + 5000
= 19000
Dimana A = apel
J = jeruk
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