Предмет: Математика, автор: beedyvdg17026

помогите пожалуйста пожалуйста

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Ответы

Автор ответа: arsenka12343

1

2,5x = -17,5

x = -17,5 : 2,5

x = -7

-x : 1,2 = 1,3

-x = 1,2 * 1,3

-x = 1,56

x = -1,56

beedyvdg17026: спасибо

beedyvdg17026: большое

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