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数学
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6x-2(1-x)=7x-3(x+2)
人气:283 ℃ 时间:2020-04-12 06:12:42
解答
6x-2(1-x)=7x-3(x+2)
6x-2+2x=7x-3-3x
8x-2=4x-3
8x-4x=-3+2
4x=-1
x=-1/4
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