Перейти к выбору ответа 02.04.2022как решить уравнение (х-1):3=(20-2х):3 Выбрать другой вопрос Смотреть ответ Перейти к выбору ответа Математика Вопрос школьника по предмету Математика как решить уравнение (х-1):3=(20-2х):3 Ответ учителя по предмету Математика (х-1):3=(20-2х):3 (умножим на 3 обе части ур-ия) х-1=20-2х х+2х=20+1 3х=21 х=21:3 х=7
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1. I( to know) that he ( to be) your friend.
2. He (to want) to something himself.
3. He (to say) that you (to know) him, and that he only (to ask) for a short conversation
4. Now he (can) tell you what you (must).
5. She (to believe) she (can) do it.
6. His family (to live) in Moscow five years ago.
7. Last summer they (to swim) in the river,(to play) volley-ball, (to go) for a walks.
8. We (to have) dinner at 6 o’clock yesterday.
9. Last winter (to be) rather cold.
10. She (to work) five days a week two years ago.
11. When he (to be) a child he(can) read and write.
12. She often (to phone) me in the evening.
13. She often (to read )to my students and she usually (to laugh) over funny stories together with them