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数学
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2x+5分之x等于5分之33
人气:220 ℃ 时间:2020-03-28 21:53:06
解答
x/(2x+5)=33/5
33(2x+5)=5x
66x+165=5x
66x-5x=165
61x=165
x=165/61
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