Упростите выражение – 4(2,3x – 3) – (5 – 2,6x) + 3(0,6x – 2) и вычислите его значение при х= 5/12. Created by nastya2004101. matematika-ru

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kuku13z73 -9,2х+12-5+2,6х+1,8х-6=-4,8х+1
-48/10*5/12+1=-2+1=-1

14 votes Thanks 12

LoloшkaxD 4(2,3x – 3) – (5 – 2,6x) + 3(0,6x – 2)= 9,2x - 12 - 5 + 2,6x + 1,8x - 6 = 13,6x - 22, если x = $\frac{5}{12}$ ,
то 13,6 * $\frac{5}{12}$ = $5\frac{2}{3}$ - 22 = -16,3

17 votes Thanks 30

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