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Ответ

Ответ дан
nirvanaEC
y+0,5=9:2
y+0,5=4,5
y=4,5-0,5
y=4

Ответ

Ответ дан
qwerty9289

Ответ:

4

Пошаговое объяснение:

(у+0.5)×2=2у+1

2у=9-1

у=4

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