Предмет: Математика, автор: annakuzn37lol

решите уравнение |3x-5|=3x-5
Подробно ​

xacku2020: х-любое
xacku2020: х-любое положительное

Ответы

Автор ответа: sofiyavictoria
1

Ответ:

х∈|1 2/3;+∞)

Пошаговое объяснение:

1. Если 3х-5≥0, 3x≥5, x≥5/3, x≥1 2/3, то 3х-5=3х-5. 0х=0,  х∈|1 2/3;+∞)

2. Если 3х-5<0, 3х<5, x<1 2/3, то 3х-5=-(3х-5).  3х-5=-3х+5. 6х=10. x=5/3.

   x=1 2/3 - не удовлетворяет ОДЗ.

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Русский язык, автор: Аноним
Н.ф причастия прибрано.(полное причастие мужского рода, единственного числа, им. падежа.)
1 год назад
Предмет: Английский язык, автор: SvemkaSchrei
Прямая и косвенная речь. Согласование времен

Выберите правильный вариант.

13. She said that Mary______into her flat because she
______her key.
a) cannot get, lost c) couldn't get, had lost
b) couldn't get, has lost d) can't get, was losing
14. Jane told everybody that she______a meeting______.
a) had, tomorrow
b) was having, tomorrow
c) will have, the next day
d) was having, the next day
15. Mary told me that writing a test______her nervous.
a) is making c) will make
b) made d) make
16. He said that he______in America for two years.
a) lived c) had been living
b) had lived d) lives
17. They said that we______when Mary______.
a) would leave, came c) will leave, came
b) would leave, comes d) would leave, had come
18. Jane told me that Africa______than America.
a) was nicer c) is being nicer
b) has been nicer d) is nicer
19. I told everyone that I________to the party at ten, but
______as soon as possible.
a) couldn't come, would arrive
b) can't come, would arrive
c) couldn't come, arrive
d) can't come, will arrive
20. "How are your parents?" she asked. I answered that they ______ very well.
a) were c) have been
b) are d) were being
21. — The play is boring.
— Is it? 1 thought you said it______exciting!
a) is c) was
b) were d) had been
22. Mary told me that she______Helen in the park and that
she______fine.
a) saw, had seemed c) had seen, seemed
b) had seen, had seemed d) has seen, was seeming
23. He said that his car _____ a few days ago.
a) was stolen c) had been stolen
b) has been stolen d) is stolen
24. Jane told me that I______at her house if I______ever
in Paris.
a) could stay, was c) can to stay, was
b) can stay, am d) could have stayed, was
25. Mary answered that she______the next month.
a) is married c) was marrying
b) was getting married d) is marrying
1 год назад
Предмет: Қазақ тiлi, автор: уarik
Можете помочь ||| денгей
1 год назад
Предмет: Математика, автор: tzimatskaya
Помогите пожалуйста, зачем по математике буду очень благодарна
7 лет назад
Предмет: Психология, автор: raisa38p5mrzs
Помогите придумать психологическую ситуацию психолог с клиентом... Вика 25 лет конфликтная ситуация на работе с Аней 26 лет
7 лет назад