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GASESTE VALOAREA FIECAREI LITERE:
6X(5+4)-O+10=29-7:7


Răspuns :

6x9-o+10=29-7:7=29-1 54-o+10=29-1=28 54-o=28-10=18 o=54+18=72
6X(5+4)-O+10=29-7:7
6x9-O+10=29-1
54-O+10=28
54-O=28-10=18
O=54-18
O=36