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Cum se rezolva acest exercitiu? (100xd-110):39=10 URGENT VA ROG!


Răspuns :

(100x-110):39=10
100x-110=390
100x=500
x=5
(100×d-110):39=10
(100×d-110)=10×39
100d=390+110
d=500:100
d=
P:(100×5-110):39=10
(500-110):39=10
390:39=10
10=10