Предмет: Математика, автор: nebesnapopuga

3x-2x+7x+23=47
10x+5x-2x+8x=84
Відповідь.

Ответы

Автор ответа: vasilisinasofia978
1

Ответ:

3x-2x+7x+23=47

3x-2x+7x=47-23

8x=24

x=24÷8

x=3

10x+5x-2x+8x=84

21x=84

x=84÷21

x=4

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