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[(64:c-21:3)x4+9]x4=436

Răspuns :

[(64:c-21:3)x4+9]x4=436
[(64:c-7)x4+9]x4=436
(64:c-7)x4+9=436:4
(64:c-7)x4+9=109
(64:c-7)x4=109-9
(64:c-7)x4=100
64:c-7=100:4
64:c-7=25
64:c=32
c=64:32
c=2
Sper sa te ajute!....
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