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1.300.000 = 5000x + 10.000 y
dieliminasi,
1850.000 = 10.000x + 10000 y
1300.000 = 5000x + 10000y
____________________________ __
-550.000 = - 5000 x
x = 110
maka , 185 = 110 + y
y = 75
5x+10y=1300
x+y=185
eliminasi
5x+10y=1300
5x+5y=185
5y=1115
y=223