
(378*584-123)/(583*387+264)
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(387*584-123)/(583*387+264)
=[387*(583+1)-123]/(583*387+264)
=(387*583+387-123)/(583*387+264)
=(583*387+264)/(583*387+264)
=1
=[387*(583+1)-123]/(583*387+264)
=(387*583+387-123)/(583*387+264)
=(583*387+264)/(583*387+264)
=1
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