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Ответ

Автор - Veronika724

|3-4x|+|-y| = |3-4x| + |y|

При x = 2,1; y = 0,4:

|3-8,4| + |0,4| = |-5,4| + 0,4 = 5,4 + 0,4 = 5,8

Ответ

Автор - Nurtilek001

Ответ:|3-8,4|+|-0,4|

5,4+0,4

6,8

Пошаговое объяснение:

Вместо "x" подставляем число

и вместо "y" тоже подставляем данное число

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