Предмет: Математика, автор: Magcon14

Упростите выражения:
15с×9×4=
9х+7х+3х=
15 у-6у+8у=
52з-16х+9х=
8(х+6)-28=
7(2х+3)-10х=
4(9х+7)-26х=

Ответы

Автор ответа: шпион15
0
1) 540
2) 19х
3) 17у
4)52з-7
5) 8х+20
6)4х+21
7)10х+28
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Put the verb into the correct form using the Third Conditional.

1. I didn’t know you were in hospital. If I ______________ (know), I ___________________ (go) to visit you.
2. Ken got to the station in time to catch his train. If he___________________ (miss) it, he ____________________ (be) late for his interview.
3. It’s good that you reminded me about Ann’s birthday. I _____________________ (forget) if you ____________________________ (not / remind) me.
4. How was your holiday? Did you have a nice time? – It was OK, but we ______________________ (enjoy) it more if the weather_______________________________ (be) better.
5. I took a taxi to the hotel but the traffic was very bad. It _________________________ (be) quicker if I ____________________ (walk).
6. In your place I _______________________ (accept) that invitation.
7. In his place I ________________________ (not / involve) your colleagues in that affair.
8. In his place I ________________________ (not / fail) that exam, I _____________________ (pass) it.
9. In their place I ______________________ (solve) that problem long ago.
10. If I were you I _______________________ (not / touch) that matter at the meeting yesterday.
11. If I ____________ (be) you I _______________________ (not / share) secrets with that girl.
12. If you ______________________ (accompany) me to the concert, you _____________________ (enjoy) the wonderful music.
13. If we _____________________ (solve) that problem in time, we ________________________________ (not / involve) in such a situation.
14. If he _____________________ (treat) his wife like a loving husband, she _________________________ (not / leave) him.
15. He ___________________________ (not / become) a great pianist if he _______________________ (not / develop) his talent.
16. If my relations _____________________ (offer) me help when I was in trouble, I ________________ surely ________________ (accept) it.
17. If my colleagues ________________________ (object) to my plan, I ______________ never ___________ (insist) on it.
18. If her doctor ________________________ (prescribe) that medicine to me, I _______________ surely _______________ (take) it.
19. If those people ________________________ (refuse) to help me, I _______________________ (find) another way out.
20. If I _____________________ (not / oversleep), I _________________________ (not / be) late for classes today.