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(x-8000 )·(1+10%)= (1+35%)x-11000
人气:383 ℃ 时间:2020-05-30 21:58:10
解答
(x-8000 )·(1+10%)= (1+35%)x-11000
(x-8000)×1.1=1.35x-11000
1.1x-8800=1.35x-11000
1.35x-1.1x=11000-8800
0.25x=2200
x=8800
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