Предмет: Математика, автор: MalinaSi5

Номер 68 69 пожалуйста

Приложения:

Ответы

Автор ответа: ravitskayalera
1

Ответ:

68: x=47;56;165;190;423;364

69: x=19

Пошаговое объяснение:

1) (x+38)-59=26

(x+38)=26+59

(x+38)=85

x=85-38

x=47

2) (x-35)+26=47

(x-35)=47-26

(x-35)=21

x=21+35

x=56

3) (x-96)-48=21

(x-96)=21+48

(x-96)=69

x=69+96

x=165

4) 879-(458+x)=231

(458+x)=879-231

(458+x)=648

x=648-458

x=190

5) 951-(x-354)=882

(x-354)=951-882

(x-354)=69

x=69+354

x=423

6) 549-(425-x)=488

(425-x)=549-488

(425-x)=61

x=425-61

x=364

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