Предмет: Алгебра, автор: sofiatuz867

ПОМОГИТЕ, ДАЮ 50 БАЛЛОВ​

Приложения:

Ответы

Автор ответа: katadzendzelo
1

Ответ:

(-3x-15)×(3/10x-9/5)=0

-3-15=0

3/10x-9/5=0

x=-5

x=6

Автор ответа: iramazurk
1

Объяснение:

(-3х - 15)(0,3х - 1,8) = 0

1)

-3х - 15 = 0

-3х = 15

х = 15 : (-3)

х1 = -5

2)

0,3х - 1,8 = 0

0,3х = 1,8

х = 1,8 : 0,3

х2 = 6

Похожие вопросы
Предмет: Математика, автор: ruslanmara77
Предмет: Английский язык, автор: topaarina
Put the verbs into right tense according to the rules of Sequence of Tenses:
1. I thought he (come)_____ in time.
2. Bob wanted to know what (become)_____ of the books which he (leave)_____ here the day before.
3. I finally said that I (not wish)_____ to hear any more about the subject.
4. Mark remembered that he (leave)_____ his key and diary at the hotel.
5. We have heard that he (be)____ very clever.
6. My wife told me that in an hour she (go)_____ for a walk.
7. The boy did not know that the water (boil)_____ at 100°degree.
8. He told us how he (live)_____ in the North. We were quite astonished when he said that in the far North the sun never (rise)_____ in winter and never (set)_____ in summer.
9. Last year I skated much better than I (do)_____ now.
10. The teacher told us that there (be)____ 26 letters in English alphabet.
11. The pupil who (answer)_____ questions now did not know any English last year.
12. One day the boy asked his father how long elephants (live)______.
13. Her cousin (seem)_____ surprised to find us there. He (say)_____he (think)____ that we (start)____ an hour ago. Then he (tell)_____ us he (go)____ probably for a voyage the following month with his family.
14. Poor uncle (rush)_____ to the nursery to see what his young daughter (do)____ there as there (be)____ a terrible noise in the house.
15. They (begin)____ to ask me questions about myself and pretty soon they (have)____ my story. Finally they (tell)____ me I (answer)____ their purpose . I (say)_____ I (be)_____ sincerely glad, and (ask)____ what it (be)___. Then one of them (hand)___ me an envelope and (say)_____ I (find)____ the explanation inside.
Предмет: Алгебра, автор: l4pineg