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41-5×{[6-3×(a-48:4):9]×4-45:9-35:5}=1


Răspuns :

5x{[6-3x(a-12):9]x4-5-7}=40
[6-3x(a-12):9]x4-12=8
b=20
c=20:4=5
d=6-5=1
e=1x9=9
f=9:3=3
a=12+3
a=15
am inlocuit pasajele acelea cu litere.