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数学
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解方程:3x-[5-6(2-x)]=8
人气:316 ℃ 时间:2020-04-12 22:44:05
解答
3x-[5-6(2-x)]=8
3x-[5-12+6x]=8
3x-5+12-6x=8
-3x=8+5-12
-3x=1
x=-1/3
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