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rezolvati varog ecuatia
urgent.


Rezolvati Varog Ecuatia Urgent class=

Răspuns :

(45-x)x2-15=45 => (45-x)x2=45+15  => (45-x)x2 = 60 => 45-x =60:2 =>
=> 45-x = 30 => -x= 30-45 => -x = -15 => x=15