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Aflati Necunoscuta 8-8:{6-5:[4-3:(2-2:a)]}=1

Răspuns :

8-8:{6-5:[4-3:(2-2:a)]}=1

6-5:[4-3:(2-2:a)]= (1-8)x -8
4-3:(2-2:a) = (56-6)x -5
2-2:a= (-250-4) x -3
a= (762-2)x -2
a= -1520