Предмет: Математика, автор: dotiko1

Уравнение.
1)(х-16).9=126
2)(х+76):7=15

Ответы

Автор ответа: bagixa
4
(х-16)*9=126
х-16=126:9
х-16=14
х=14+16
х=30
проверка
(30-16)*9=126
14*9=126
126=126

(х+76):7=15
х+76=15*7
х+76=105
х=105-76
х=29
проверка
(29+76):7=15
105:7=15
15=15
Автор ответа: YatsAntoshka
0
1. (x-16)*9=126
9x-144=126
9x=126-144
9x=-18
x=-18:9
x=-2
Ответ: -2.


Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: viktoria1GraityFalls
1. George isn't looking forward...a new house.
(a) moving (b) moving to (c) to move to (d) to moving to

2. How do you manage ... so many things?
(a) to do (b) done (c) did (d) to be done

3. Mum says we must... the dirty dishes in the sink.
(a) putting (b) be put (c) put (d) to put

4. I'm sorry, but I can't help... at your haircut!
(a) laughing (b) laughed (c) to laugh (d) will laugh

5.Don't deny... the window. Tom saw you.
(a)break (b) to break (c) having broken (d) have broken

6. I would love... a house in the countryside.
(a) to have (b) had have (c) had (d) have had

7. Has anyone offered... you?
(a) helping (b) help (c) to help (d) helped

8.It's not worth... so much for a used car.
(a) pay (b) to pay (c) paying (d) to have paid

9. She has... money that she has to have two jobs
(a) so little (b) so few (c) such a little (d) such a few

10. He can't be blamed... to phone.
(a) forget (b) to forget (c) of forgetting (d) for forgetting

Прошу спасите! Только отвечайте правильно. Даю 20 баллов!!!
1 год назад
Предмет: Русский язык, автор: яна14061
сочинение на тему "социальные сети: за и против"
1 год назад
Предмет: Беларуская мова, автор: Никита41328
Хнайди́ ли́шняе слова.
Малаток,Драва,сякера,план,рубанак.
Ау́тобус,прамвай,машына,цягни́к,дарога.
1 год назад
Предмет: Математика, автор: slavik27054
Виберіть із поданих рівняння загальні рівняння прямої:

1) 3x+y^2−5=0
2) 5xy=3
3) x+y+1=0
4) 2x−y=0
5) x−1=0
6) y=7x+3
7) y=0
7 лет назад
Предмет: Английский язык, автор: duhdbs
2 Complete the sentences with the verbs below. Use the affirmative, negative or interrogative form of the
present simple,
arrive ,not argue ,not come ,play ,wash
1 They not come _ from Scotland.
2 The train arrive
at 8 p.m.
3
he
the drums in a band?
4 De _ you_wash the dishes or is that your parents' job?
5 Leila
a lot with her parents
7 лет назад