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b = uang Ani
a + 2b = 425.000
a - 1/5 b = 150.000
________________ -
2 1/5b = 275.000
11/5b = 275.000
b = 275.000 × 5/11
b = 125.000
a + 2b = 425.000
a + 2(125.000) = 425.000
a = 425.000 - 250.000
a = 175.000