Спростіть вираз: -3(1,2х-2)-(3-4,6х)+6(0,2х-1) якщо х= -15/22 БУДЬ ЛАСКА ДОПОМОЖІТЬ!!!!!!!!!!!!. Created by dasapehnik. matematika-ru

22 БУДЬ ЛАСКА ДОПОМОЖІТЬ!!!!!!!!!!!!...

dasapehnik @dasapehnik

July 2022 1 8 Report

Спростіть вираз:
-3(1,2х-2)-(3-4,6х)+6(0,2х-1)
якщо х= -15/22
БУДЬ ЛАСКА ДОПОМОЖІТЬ!!!!!!!!!!!!

Answers & Comments

eleonaise

$-3(1,2x-2)-(3-4,6x)+6(0,2x-1)=-3.6x+6-(3-4.6x)+1.2x-6=\\=-3,6x-(3-4.6x)+1.2x=-3.6x-3+4.6x+1.2x=2.2x-3$

Если $\displaystyle x=-\frac{15}{22}$

$\displaystyle 2.2*(-\frac{15}{22} )-3=\frac{11}{5} *(-\frac{15}{22} )-3=-\frac{3}{2} -3=-\frac{3+6}{2} =-\frac{9}{2} \;\;\;ili\;\;-4.5$

Ответ: $-4,5$

5 votes Thanks 8

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Answers & Comments

9 usiyeyi vidstani sho stanovit na 8 km bilshe vid polovini marshrutu znajti dov58f6a6ea5ee72cf9ded58dc0c5caa34a 39582

rozvyazhit bud laska zadachu dlya podarunkiv dityam pridbali 80 apelsiniv 240 cu

do basejnu pidvedenno tri trubi cherez pershe trubu basejn napovnyuyetsya za 6 godi0d271884f2fd47f484c6b3ed0ce4a0d9 34428

32 masi risu skilki tonn boroshna i skilki tonn risu bulo na skladi

9 usiyeyi vidstani sho stanovit na 8 km bilshe vid polovini marshrutu znajti dov

sklasti viraz ta znajti jogo znachennya 1do chastki chisel 60136 i 2 dodati dobud399c199346bc81277a9fd9c86cdcad0e 62753

do basejnu pidvedenno tri trubi cherez pershe trubu basejn napovnyuyetsya za 6 godi

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