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(1+6%)x+(12200-x)*(1-5%)-12200=5 x=?
人气:359 ℃ 时间:2020-06-14 08:57:14
解答
(1+6%)x+(12200-x)*(1-5%)-12200=5
1.06x+12200*0.95-0.95x-122200=5
0.11x=5+12200*0.05
0.11x=615
x=5590.91
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