Mathematics, 17.10.2021 17:40 reneewilliams20

Using the substitution P=1/x and Q=1/y. solve the simultaneous equation 2/x + 1/y=3 and 1/x - 5/y=7

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Using the substitution P=1/x and Q=1/y. solve the simultaneous equation 2/x + 1/y=3 and 1/x - 5/y=...

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