Предмет: Математика, автор: sunny14moon

Найдите корень уравнения
а) 3(0.4х+7)-4 (0.8х-3)=2
б) 4.5(7/15х+2/9)-0.77 (8/11х-3/7)=-1,75

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Автор ответа: LisaLeoo

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