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ajutor (9×8-i)÷10+33-25 =15​

Răspuns :

(72-i):10+33-25=15

(72-i):10+33=15+25

(72-i):10+33=40

(72-i):10=40-33

(72-i):10=7

72-i=7x10

72-i=70

i=72-70

i=2