1.爸爸今年36歲,剛好是妹妹歲數的2倍多12歲,求妹妹今年的歲數.(用方程計)
設妹妹今年的歲數是A歲.
A+12X2 =36
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收錄日期: 2021-04-29 21:41:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071120000051KK01896