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Автор - kristinaillari

правильное решение уравнения х-4500=7200-2800

Ответ

Автор - TheTimkol
х-4500 = 7200-2800
х-4500=4400
х=4500+4400
х=9900

Ответ

Автор - svetaburt
=4400
х=4400+4500
х=8900

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