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How to solve this using numbers from 1 to 9 to only once to equal this ( ? - ? + 1=1 )

Mathematics
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Question added by Abdelaal Mohamed , Customer Service Representative -Retention and Complaint Handling , MetLife
Date Posted: 2016/04/30
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Hanan Kuzat
by Hanan Kuzat , faculty Member , Texas

n-n+1=1, where n is any real or complex number.

Muhammad Sajid

If any number from 0 to 9 is subtracted from itself and then add 1 it becomes 1.

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5-5+1=1

Deleted user
by Deleted user

no solution in !R .........................

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