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4.05/100X =10+17+ 2.25/100X
人气:142 ℃ 时间:2020-06-14 07:09:09
解答
4.05/100X -2.25/100X=27
1.8/100x=27
2700x=1.8
x=18/27000=1/1500
你确定题目没错吗?错了吧,是1500吧
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