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Solve the following systems of equations:\(\frac{7x-2y}{xy}\) = 5\(\frac{8x+7y}{xy}\) = 15 |
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Answer» \(\frac{7x-2y}{xy}\) = 5 ⇒ 7/y – 2/x = 5 ---- (1) \(\frac{8x+7y}{xy}\) = 15 ⇒ 8/y + 7/x = 15 ---- (2) Multiplying eq1 by 7 and eq2 by 2 and adding ⇒ 65/y = 65 ⇒ y = 1 Thus, 7 – 2/x = 5 ⇒ x = 1 |
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