Re: [中學] 國中段考爭議
a:b=3:5 => a+3:b+5=3:5
前提假設下的b不為0,其他數字都可以
所以a=-3,b=-5當然是符合前提
所以要看結論正不正確時
b=-5當然也要考慮進去
怎麼能不考慮
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