Автор - dikoooo05

алгебра 8класс
 - 3(x 3 - 5x - 7) - 2x + 8.2 - 3(2.3 - x 3 - 5x) = 0

Ответ

Автор - ernur8197

-3(x3-5x-7)-2+8.2-3(2.3-x3-5x)

-3(3x-5x-7)-2x+8,2-3

-3(-2x-7)-2x+8,2-3

6x+21-2x+8,2-3

4x+21+8,2-3

Ответ: 4x+26,2

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