x-(x-800)*14%=3380 答案是3800

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x-(x-800)*14%=3380 答案是3800
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x-(x-800)*14%=3380 答案是3800
x-(x-800)*14%=3380 答案是3800

x-(x-800)*14%=3380 答案是3800
x-(x-800)*14%=3380
x-14%x+800*14%=3380
86%x+112=3380
86%x=3268
x=3800