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2x + 4y = 100000 | ×1 |
5x + 1y = 70000 | ×4 |
--------------------
2x + 4y = 100000
20x + 4y = 280000
--------------- -
-18x = -180000
x = 10000
substitusi :
2x + 4y = 100000
2(10000) + 4y = 100000
20000 + 4y = 100000
4y = 100000 - 20000
4y = 80000
y = 20000
Dit : 1x dan 1y ?
1(10000) dan 1(20000)
10000 dan 20000
jadi 1 jeruk = 10000 dan 1 apel = 20000.
Tolong check kembali.
5x+1y= 70.000
maka
2x+4y =100.000
20x+4y=280.000-
hasilnya -18x= -180.000
x= -180.000/-18
x= 10.000
jadi hrga jeruk 10.000/kg
2x+4y= 100.000
2(10.000) + 4y= 100.000
20.000+4y= 100.000
4y= 100.000-20.000
4y= 80.000
y= 80.000/4
y= 20.000
jadi harga apel adalah 20.000/kg