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[408-(302+c)+330];6=4x3x6

Răspuns :

[408-(302+c)+330]:6=72
408-(302+c)+330=  432
408-(302+c)=432-330
408-(302+c)=102
302+c=408-102
302+c=306
c=4

[408-(302+c)+330]:6=72
[408-(302+c)+330]=72•6
[408-(302+c)+330]=432
408-(302+c)=432-330
408-(302+c)=102
302+c=408-102
302+c=306
c=306-302
c=4
Sper ca te-am ajutat ! :)