Предмет: Математика, автор: pakulinnazar098

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Автор ответа: kalinintalin
1

Ответ:

Пошаговое объяснение:

1)2(5x+3)+5(1-2x)=3*10    

10x+6+5-10x=30

0x=19  - нет решений

2)4x-x-4=2x+6

3x-4=2x+6

x=10

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