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Ответ

Ответ дан
pdikk

Пошаговое объяснение:

(45+x)-15=42

45+x=42+15

45+x=57

x=57-45

x=12

93-(x-25)=15

x-25=93-15

x-25=78

x=78+25

x=103

(241-x)+12=183

241-x=183-12

241-x=171

x=241-171

x=70

82-(x+17)=51

x+17=82-51

x+17=31

x=31-17

x=14

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