Предмет: Математика, автор: Makar371

СРОЧНО!!! РЕШИТЕ УРАВНЕНИЕ: 32,78+7,2a+1,4a=68,9

kuzhanoviosif2007: ну я же всё не написал времени небыло я же ответ дал

Ответы

Автор ответа: googthjgg345

Ответ:

4.2

Пошаговое объяснение:

32.78+8.6а=68.9

8.6а=68.9-32.78

8.6=36.12

а=4.2

а=21/5

Makar371: Спасибо

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