Mathematics
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7 等式 さい。 1 1 IC es タ HE X= チ a + 15 言について について、a+b=7,ab=5のときxの値を求めな

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✨ Best Answer ✨

1/x=(a+b)/ab (通分)
=7/5 より
x=5/7

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ありがとうございます!!

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