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Cat face:
b-64:8=60

Altul:
81:a-3=6


Răspuns :

B - 64:8=60  .   64:8=8    B-8=60   B=60-8 B=52    
b-64:8=60 => b-8=60 / +8 => b=68
81:a-3=6 / +3 => 81 : a =9 => a =9