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calculati:
-3(2x-5)+7x-9=-5x-2(9-3x)+24
multumescc! vreau urgent dau si coroana!



Răspuns :

-3(2x-5)+7x-9=-5x-2(9-3x)+24

-6x+15+7x-9=-5x-18+6x+24

x+6=x+6

x apartine numerelor naturale
-6x+15+7x-9= -5x-18+6x+24
x+6=x+6=0