ayam = x
kambing = y
x+y=200
2x+4y=500
eliminasi:
x+2y=250
----------------- -
-y=-50
y=50
x=150
a=harga sepasang kaki ayam
b=harga empat pasang kaki kambing
harga = xa+yb
1.075.000 = 150a+50b
21.500=3a+b
maka harga yg mungkin
a=500
b=20.000
(D)
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ayam = x
kambing = y
x+y=200
2x+4y=500
eliminasi:
x+y=200
x+2y=250
----------------- -
-y=-50
y=50
x=150
a=harga sepasang kaki ayam
b=harga empat pasang kaki kambing
harga = xa+yb
1.075.000 = 150a+50b
21.500=3a+b
maka harga yg mungkin
a=500
b=20.000
(D)