Предмет: Математика, автор: Angelgymnastica

53,8х-17,9х28,1х+39,457=172,001

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Автор ответа: ВатОнЯ

0

53,8Х-19,9х28,1Х+39,457 = 172,001
53,8Х-559,19Х+39,457 = 172,001
-505,39Х = 132,544
Х = 132544
-______
505390
Х = 66272
- _____
252695

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