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数学
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3(x-1)+2(2x+3)=1
人气:100 ℃ 时间:2020-02-06 22:56:56
解答
7x+3=1
x=-2/7
推荐
3/2x=1/2,求x
2x/x-1 - 3/x+1 =2
x-3/2x-1>=2
-2(x-3)=2(1-2x)
(x+3):3=(2x-1):2
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