November 2019 1 25 Report
Jika
x = a \: dan \: y = b \:
merupakan penyelesaian dari sistem persamaan
 \frac{2}{x} + \frac{1}{y} = 4 \: dan \: \frac{5}{x} - \frac{2}{y} = 1
hasil dari
3a - 2b = .....



mohon dijawab​

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