问题已解决
能寫出計算過程嗎,謝謝了。
FAILED
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您的問題老師解答(計算)中,請耐心等待
2020 05/14 10:25
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陳詩晗老師 
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2020 05/14 10:31
850=a+b*31
120=a+b*4
求出,b=27,a=12
10萬件,27*10+12=282
你看一下,
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2020 05/14 12:42
謝謝老師
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陳詩晗老師 
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2020 05/14 12:43
不客氣,祝你學習愉快。
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能寫出計算過程嗎,謝謝了。
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