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Ответ

Ответ дан
jekadva

Ответ:


Пошаговое объяснение:

2*(500-y:3)=820

500-y:3=820:2

500-y:3=410

y:3=500-410

y:3=90

y=90*3

y=270

Ответ

Ответ дан
varyerkhova

2*(500-y:3)=820

1000-2у/3=820

-2у/3=820-1000

-2у/3= –180

-2у=180*3

-2у=540

у= 270

Ответ: 270

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