一道数学题难题,66667777777777777777777777777777+6668788888888888888888889999999999X=999999999999999999999999999999999999999999999999999999999999999999999999999999X=?

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一道数学题难题,66667777777777777777777777777777+6668788888888888888888889999999999X=999999999999999999999999999999999999999999999999999999999999999999999999999999X=?
一道数学题难题,
66667777777777777777777777777777+6668788888888888888888889999999999X=999999999999999999999999999999999999999999999999999999999999999999999999999999
X=?

一道数学题难题,66667777777777777777777777777777+6668788888888888888888889999999999X=999999999999999999999999999999999999999999999999999999999999999999999999999999X=?
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