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Автор - плаоопььсьп

задумали число,увеличели его на 60,а рещультаи уменьшили на 76.Получили 78.Какое число задумали?

Ответ

Автор - AkulaAkula
(х + 60) - 76  = 78
х + 60 = 154
х = 94
Если подставить в уравнение, то все верно 

Ответ

Автор - akiraNight
х + 60 - 76 = 78 
х + 60 = 76 + 78 
х + 60 = 154
х = 154 - 60 
х = 94 
94 + 60 - 76 = 78 
94 + 60 = 154
154 - 76 = 78

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