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Автор - ksusha510

Найдите значения выражения 5x+18x при x=13 предварительно упростив его

Ответ

Автор - zamyatinamarina2008

Ответ:

Пошаговое объяснение:

5х+18х= если Х равен 13 то,

5*13+18*13 упрощаем:

13*(5+18)=299

1)5+18=23

2)13*23=299

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