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Mathematics
Junior High
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ずみ
ずみ

解き方を教えてほしいです

(13) r—5r=0

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✨ Best Answer ✨

ハラライ
ハラライ

左辺の共通因数をくくり出す
x（ x−5）= 0こいつを解くと
x = 0と5

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