Предмет: Математика, автор: milano4ka1712

-5 х (с+6) +9х(3с-7)
СПРОСТІТЬ ВИРАЗ
Прошу вас, помогите.....Срочно, я даю 35 баллов, только развернутый ответ(полный)
ПРОШУ НЕ СПАМЬТЕ, МНЕ ОЧЕНЬ НУЖНО:(


milano4ka1712: ПРОШУ

Ответы

Автор ответа: allas2
1

Ответ:

Пошаговое объяснение:

умножаем на скобки (-на+ даёт -) и приводим подобные

-5хс-30х+27хс-63х=22хс-93х


milano4ka1712: СПАСИБООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООООО
Автор ответа: сок111213
0

 - 5x(c + 6) + 9x(3c - 7) =  - 5cx - 30x + 27cx - 63x = 22cx - 93x

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Помогите пожалуйста.
TEST 10 Spotlight 7 VARIANT 1


1. Write the correct reflexive pronoun in the gap.

1 Do you think he can do it by ...................?

2 We are going to the shops by .................. .

3 I cooked dinner .................................. .

4 The doctor told Pat and John to look after.......................... .

5 Did you hurt ............ badly in the accident?

6 The lamp switched off by ...................... .


2. Fill in the gaps with apart, behind or out.

1. Julie fell ................ with her brother because he wasn’t nice to her.

2. This book is falling ................ . I have to buy a new one.

3. He fell ................ in his work because he was on holiday.


3. Fill in the correct word.

sore sprain ache miserable flu appointment hurt chip

1 Jane didn’t go to work today as she had a stomach ...................... .

2 Tom has ...................... his back and has to rest.

3 He has a high t emperature. I think he’s coming down with the ....................... .

4 Can I have some tea with honey, please? My throat is ......................... .

5 What’s wrong with your wrist? Did you ....................... it?

6 You have to go to a dentist when you ........................ a tooth.


4. Use the prompts to complete the phrases.

sit move throw argue lose practise

1 to .................... house 2 to ...................... with someone

3 to ................ an exam 4 to .................. a party

5 to .............. something valuable


5. Match the words in Column A to the words in Column B.

A

1.wash …..

2.eat .......

3. get .......

4. put .......

5. take .......

6. drink .......

B

A a painkiller

B a cool pack on your forehead

C a light meal

D plenty of fluids

E with cold water

F some rest