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itbl 18 12 € = ला g’i 1Bw \ &lodbikh 9 loadine |
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Answer» 1/x + 5/y = 2........(1)3/x + 10/y = 3......(2) Multiply eq(1) by 33/x + 15/y = 6...... (3) Subtract eq(2) from eq(3)15/y - 10/y = 6 - 35/y = 3y = 5/3 Put value of y in eq(1)1/x + 5/(5/3) = 21/x = 2 - 31/x = - 1x = - 1 |
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