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Ответ

Автор - Galina1013

Ответ:

x=100

Пошаговое объяснение:

х - неизвестное число

х*1,5:2=75

решение   75*2=150    150:1,5=100

х=100

проверка   100*1.5:2=75

                    150:2=75

                     75=75

Ответ

Автор - daniyarmuhammedkarim

Ответ:

100


Пошаговое объяснение:

Пусть задумано число X

Тогда X×1,5:2=75

X=75×2:1,5=100

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