Предмет: Алгебра, автор: shpulka1226

Определи значение n, при котором значения выражений 3(n−2)+11 и 4(n+4) являются противоположными числами.

Ответы

Автор ответа: ntram

Ответ:

3(n - 2) + 11 = -4(n + 4)

3n - 6 + 11 = -4n - 16

3n + 5 = -4n - 16

3n + 4n = -16 - 5

7n = -21

n = -3

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Di67878u907

The term "Young People's Movement" is so wide that it includes all kinds of young people's
associations from Punk Rockers, Hippies, and Goths to the Young Conservatives in Britain and Komsomol in Soviet Russia.
The world's first voluntary youth organization was the Boys' Brigade, founded in Glasgow, Scotland, in 1883 by William Alexander Smith. This idea was to give the boys religious education and teach them to be disciplined and well-mannered.
In England Major-General Robert Baden-Powell founded the Boy Scouts movement in 1908. Like the Boys' Brigade, the Scout movement has spread around the world. A sister organization to
the Scouts, the Girl Guide Association, founded in 1910, also has a lot of members in different countries. These organizations train boys and girls in various useful skills, such as lighting a fire, cooking, fishing and help children to develop their character.
Very often young people's movements are political in nature. In the 1930s there existed Fascist organizations for young people in Mussolini's Italy and Hitler's Germany. In Britain some young people joined the Blackshirts.
Soviet Russia had Young Communist groups: Oktobrists, Pioneers and Komsomol, which were founded to give young people political education and teach them patriotism.
The second half of the 20th century saw a number of youth cults and cultures such as the Rockers, associated with motorcycles, rock-and-roll music and clothes made of leather The Hippies of the late 1960s experimented with drugs, lived in communities, grew their hair long and were interested in radical politics.
The Goths followed a fashion of the late 1980s and early 1990s for white faces and black and purple clothes.
Skinheads are associated with racism. They appeared in the 1960s. Skinheads, mostly boys and young men, shave their hair off or cut it very short. They wear heavy boots and earrings. Skinheads often use violence and terrorize people. Some of the youth cults have survived till nowadays.
ПОМОГИТЕ СОСТАВИТЬ ПЕРЕСКАЗ! Как можно меньше, если это возможно)

1 год назад

Предмет: Українська мова, автор: alena3311

Зі словом барвінок складіть і запишіть чотири речення. Поширте їх такими словами : росте, вічнозелений, у, саду.

1 год назад

Предмет: Русский язык, автор: словоягодыкакойрод

какое слово название признака стоит в начальной форме:желтая,узкие,хороший,маленькое

1 год назад

Предмет: Русский язык, автор: elizabethsimmer

ОБЪЯСНИТЕ МНЕ ПОЖАЛУЙСТА ГДЕ РАССТАВИТЬ ЗНАКИ ПРЕПИНАЯ И ПОЧЕМУ!ГЛАВНОЕ ПОЧЕМУ ИМЕННО ТАМ

7 лет назад

Предмет: Английский язык, автор: vinsent2

Помогите пожалуйста

7 лет назад