Предмет: Алгебра, автор: Аноним

SOS!!!!!!!Помогите, пожалуйста решить 11 и 13 уравнения,очень нужно решить,умоляю!!)))

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Автор ответа: miron2077

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Автор ответа: nmmnm

Извините,в ответе -14/3

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