أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
n-n+1=1, where n is any real or complex number.
If any number from 0 to 9 is subtracted from itself and then add 1 it becomes 1.
like
5-5+1=1
no solution in !R .........................
