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4. выражение 6,3х – 4 – 3(7,2х + 0,3) и найдите его значение при х = ⅔

Ответ:

Nikito23

02.10.2020 20:28

6,3х-4-21,6х-0,9=-15,3х-4,9
если х=2/3, то -10,2-4,9=-15,1

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