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sepatu = 2a
Jadi, 4.2a+3a = 275.000
11a = 275.000
sandal = y
4x + 3 y = 275.000
4.2 +3y = 275.000
8+3y = 275.000
11y = 275.000
y = 275.000/11 = 25000
x = 2.25000= 50.000
4x + 3y =
200000+75000 = 275.0000