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ecuatie

[(4+4):A+4×4:2]:3=3


Răspuns :

[(4+4):A+4*4:2]:3=3
[8:A+8]=9
8:a+8=9
8:a=9-8
8:a=1
a=8

verificam:
[(4+4):8+8]:3=3
(8:8+8):3=3
9:3=3