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数学
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(2y-3)(-y+4)=(y-2)(y-5)-3y(y-7/3)解方程
人气:179 ℃ 时间:2020-04-06 01:50:14
解答
11y-12-2y²=y²-7y+10-(3y²-7)
18y=12+10+7=39
y=39/18
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