Ответ:
x = -83
Пошаговое объяснение:
200x+500*8-500x = 28900
-300x = 28900-4000
-300x = 24900
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Ответ:
x = -83
Пошаговое объяснение:
200x+500*8-500x = 28900
-300x = 28900-4000
-300x = 24900
x = -83