2(х+1)=3 помогите пожалуйста решить уравнение - №24780279

2(х+1)=3 помогите пожалуйста решить уравнение
- Предмет:
  Математика
- Автор:
  paul86
- 5 лет назад

Ответы 2

А можно и по другому было)
- Автор:
  pluto
- 5 лет назад
- 0
2(х+1)=32х+2=32х=3-22х=1х=1/2 или х=0,5
- Автор:
  adánzudw
- 5 лет назад
- 0
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Вопрос 1
When the result is more important

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 2

Текст вопроса
I ... (see) that film! It was terrible.

вопрос 3
We didn't have English class this morning. It's the last lesson, later today.

Выберите один ответ:
We haven't had English already.
We've just had English.
We haven't had English yet.

вопрос 4
The first thing she did was go to a traditional restaurant.

Выберите один ответ:
She hasn't tried the local food yet.
She's already tried the local food.
She's never tried the local food.

вопрос 5
I really need a break! I ... (revise) all morning!

вопрос 6
o talk about a recent action which might not be finished

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 7
To talk about life experience

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 8
He ... (learn) English for six years.

вопрос 9
To say how many times

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 10
I don't know what octopus tastes like!

Выберите один ответ:
I've never tried octopus.
I haven't been trying octopus.
I've already tried octopus.

вопрос 11
Sorry the kitchen's a mess. Ollie ... (cook).

вопрос 12
Who ... (eat) all the cake?! There's none left.

вопрос 13
He's learning how to make Japanese food. He started his course in April.

Выберите один ответ:
He's been learning how to cook Japanese food since April.
He learnt how to cook Japanese food in April.
He's already learnt how to cook Japanese food.

вопрос 14
Hey, you look different. Have you ... (change) your hair?

вопрос 15
Sorry I'm late! Have you ... (wait) long?

вопрос 16
Sophie wanted to visit the Burj AI Arab hotel. She went there two days ago.

Выберите один ответ:
Sophie hasn't been to the Burj AI Arab hotel yet.
Sophie has just been to the Burj AI Arab hotel.
Sophie has already been to the Burj AI Arab hotel.

вопрос 17
To talk about a finished activity

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 18
We ... (know) each other for years.

вопрос 19
They've been playing for forty minutes but no one ... (score) a goal yet.

вопрос 20
Your hands are really dirty! What have you ... (do)?

вопрос 21
To explain the 'side effects' of an activity, e.g. why the kitchen is a mess

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 22

Текст вопроса
I ... (write) five emails today.

вопрос 23
Sophie is planning to buy souvenirs. It's on her list of things to do.

Выберите один ответ:
Sophie hasn't bought souvenirs yet.
Sophie's already bought souvenirs.
Sophie hasn't bought souvenirs already.

вопрос 24
Ollie took his cake out of the oven a moment ago.

Выберите один ответ:
Ollie has been making a cake.
Ollie hasn't made a cake yet.
Ollie has just made a cake.

вопрос 25
Can we go if we ... (finish)?

вопрос 26
When the action is more important

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 27
To say how long

Выберите один ответ:
Present perfect simple (have/has done)
Present perfect continuous (have/has been doing)

вопрос 28
He's waiting for Amy. He arrived 40 minutes ago.

Выберите один ответ:
He's waited for Amy for 40 minutes.
He waits for 40 minutes.
He's been waiting for 40 minutes.
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- 5 лет назад
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