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3(X+2)=4(X+1)=多少
人气:343 ℃ 时间:2020-06-18 05:41:33
解答
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2(x+1)=-3(x-4)
3/x+1=4/x+2
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
4/(x∧2-1)-1=3-x/x-1
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