Предмет: Математика, автор: Аноним

упростите выражение 6 (20+ 31x)+2(21-15 x)

Ответы

Автор ответа: Alyssa08

5

Ответ:

162 + 156x.

Пошаговое объяснение:

6 * (20 + 31x) + 2 * (21 - 15x) = 120 + 186x + 42 - 30x = 162 + 156x.

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Вискассс

Расставьте ударение в предложениях и интонацию.
In the dining-room we have our meals: breakfast in the morning, lunch in the middle of the day, tea in the afternoon, and supper or dinner in the evening. Here you see Mr. and Mrs. Thompson who have just arrived from abroad and are having dinner with the Browns. The host, Mr. Brown, is sitting at the head of the table, and the hostess, Mrs. Brown, is at the other end. Mr. and Mrs. Thompson are sitting on either side, facing each other.

The dining-room table is covered with a white cloth. The maid has laid the table in the usual way, and has put the right number of knives, forks, spoons and glasses for each person. There's also pepper and salt, oil and vinegar, and mustard. On the left of each person is a table-napkin and a plate with a roll on it. In front of the host there's a carving-knife and fork.

On the sideboard the Browns usually have a bowl of fruit: apples, pears, plums, cherries, grapes, oranges or bananas accordibg to the season. The mistress of the house has just served the soup. After this there'll be fish, meat or poultry with vegetables, then a sweet, and perchaps cheese and biscuits to finish with.

2 года назад

Предмет: Английский язык, автор: app5u1pioqdks89

Задание на фото. Срочно

2 года назад

Предмет: Английский язык, автор: Вискассс

Расставьте ударение в предложениях и интонацию.
The flat is not large but it is comfortable. In it there are two rooms, a kitchen, a bathroom, a lavatory and a
small hall.
The sitting room is through the door on the left. There is a piano in it. There is a picture on the wall over the
piano. It is a still-life. The sofa is by the wall opposite the door. It is of a rich red colour. There is a small round
table in front of the sofa. There are two modern armchairs on both sides of the large window. On the window
there are curtains of a very pretty colour. There is not a sideboard in this room, but there is one in the kitchen.
The bedroom is not large. It is square. The walls are light pink. There is a silvery grey carpet on the floor. There
are two beds here with bedside tables beside hem. In the right hand corner near the window there is a dressing
table with a large looking-glass and a round stool in front of it. There are not many things in the room.

2 года назад

Предмет: Алгебра, автор: sok1234567890s

Помогите решить уравнение : (дробью)
a) 2x-14 /3 -3x-1 /5 -x-2 /2 =0
б) 2y-1 /3y+2 =7/8
в) 3y-1 /8 =2y-7 /5

9 лет назад

Предмет: Математика, автор: 2Polina1234511

Решите примеры:

475+35
693+12
863-355
168:2
25*94
3625+75

15БАЛЛОВ

9 лет назад