Предмет: Математика, автор: korejkaa1

решите. пожалуйста, дам. 50 баллов

Приложения:

Ответы

Автор ответа: mukhtarnr06

0

Ответ:

a)-1

b)13/45

2)-1.3

3)-5.7

4)-2+x+3=5

x+1=5

x=4

5)6

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