Предмет: Математика, автор: ulyanaromanovich8

помогите плиииз
В заданном уравнении вырази переменную y через x :
2x+y=21 .

y=21


ulyanaromanovich8: нет это часть нужно продолжить ответ

Ответы

Автор ответа: zinaidazina
0

2x+y = 21

у = - 2х+21

y=21-2x


ulyanaromanovich8: спасибо
Похожие вопросы
Предмет: Английский язык, автор: dsdsjgh
MODULE 9

1. Circle the odd word out
1. chocolate-crisps-jam-square
2. bakery – café – cinema - near
3. packet- corner- jar- bar
4. horror – greengrocer’s – fantasy - romance
2. Complete the sentences using the Past Simple
1. Where…………….(she/go) last Sunday?
2. Ann and Bill…….. (see) two white tigers at the zoo.
3. Mum……………..(make) a cake yesterday.
4. My sister …………(play) basketball last weekend.
5. Lilly ........ (cook) meat yesterday.
6. Peter ....... (not/be) at the zoo yesterday.
3. Put the words in the correct order to make full sentences
1. What/you/did/yesterday/buy?
2. had/I/in/a/café/coffee/a.
3. Did/see/a/you/last/film/weekend?
4. this/bottle/How/is/much/cola/of?
4. Read the text and mark the statements as T (true) or F (false).
Nanny Mc Phee is a great fantasy film and you can see it at the Odeon in Leicester Square. In the film, Mr. Cedric Brown has got seven children. They are very bed and he doesn't know what to do with them. Every nanny he gets for them runs away. When Nanny Mc Phee comes to work at the house, everything is different. She teaches the Brown children some lessons and they become good and kind. She is the perfect nanny. Is she the perfect woman for their father too? This is a funny film for the whole family! Don't miss it!
1.Nanny Mc Phee is a film only for teens. .....
2.The Brown children are very good. .....
3.The Brown children become bad. .....
4.The film is about six children. .....
5.Nanny Mc Phee is a fantasy film. .....
6.Nannies don't like staying with the Brown children. ....