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a fost răspuns

2013 supra 104-3supra 104-6 supra 104 9 supra 204-.....99 supra 104

Răspuns :

2013/104-3/104-6/104-9/104-...-99/104=
2013/104-(3+6+9+...+99)104=
2013/104-3(1+2+3+...+33)/104=
2013/104-(3x33x34:2)/104=
2013/104-1683/104=
(2013-1683)/104=
330/104

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