6 класс помогите пожалуйста! Решите сколько сможете.

6 класс помогите пожалуйста!
Решите сколько сможете.
- Предмет:
  Математика
- Автор:
  dallas50
- 5 лет назад

Ответы 2

-2(2,7-1)-(6-3,4x)+8(0,4x-2) = -5,4+2-6+3,4x+3,2x-16= -9,4-16+6,6= -25,4+6,6При x=-5/6, выражение равно -25,4-5,5= -30,9 (думаю, неправильно(((
- Автор:
  arden
- 5 лет назад
- 0
4)-2(2,7x-1)-(6-3,4x)+8(0,4x-2)= -5,4x+2-6+3,4x+3,2x-16=1,2x-201,2×(-5/6)-20=-1-20=-215)2x-y=-8y=8+2x-0,8x-(0,6x-0,7y)=-1,4x+0,7y=-1,4x+0,7(8+2x)=-1,4x+5,6 +1,4x=5,6
- Автор:
  charliepq31
- 5 лет назад
- 0
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6 класс помогите пожалуйста!
Решите сколько сможете.