Предмет: Алгебра, автор: катя3907

решите пожалуйста уравнение 387.

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Автор ответа: Flash3146

5x/3x-5=3/1
5x=(3x-5)*3
5x=15x-15
5x-15x=-15
-10x=-15:(-10)
x=1,5

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