Предмет: Алгебра, автор: роьамор

решите систему уравнение методом агебраического сложения :у-5х=40;-5х-у=20.

Ответы

Автор ответа: Заурбек

0

у-у-5х-5х=60; -10х=60; х=-6; у-5*(-6)=40;

у+30=40

у=10

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Аноним

grade learner’s surname
Summative Assessment for Term 1

Reading

Task 1. Read the text and mark the sentences True or False.[6 ]

Myths and mythology were important in Ancient Greece. People believed that Greek Gods lived in a palace above the clouds, and above a mountain called “Mount Olympus”.
People believed that each God had power over their life. In many Greek myths, the Gods had difficulties with each other sometimes.
There were 12 Gods that the Greek worshipped. Aphrodite was one of them. Aphrodite was a beautiful Goddess of love and beauty, whose symbols were doves, sparrows, swans, and roses. She was the mother of two sons, Cupid and Aeneas. She was a very good mother.

1. People believed that Greek Gods lived in a palace above a mountain
called “Mount Alatau”.True False
2. The Gods were always quarreling with each other.True False
3. Aphrodite was a beautiful Goddess of care and peace.True False
4. Aphrodite’s symbols were doves, sparrows, swans, and roses.True False
5. Aphrodite was the mother of three sons.True False
6. She was a very good mother. True False

Writing
Task 1. Look at the pictures. Choose ONE picture to describe. Write 4 sentences. Plan your writing by naming people, objects, their actions and feelings [4]

1234
Example: Picture 1.
Plan:
- what people are in the picture
- what objects are in the picture
- what people are doing
- what are their feelings

Writing
I can see a princess in the picture. There is a big bed and some blankets in the picture. The princess is sleeping. She is unhappy.

Total: 10
Помогите пожалуйста соч

6 лет назад

Предмет: Биология, автор: kirichukkosta

Вид химической связи Первинной Вторинной Третинной и Четвертинной структури

6 лет назад

Предмет: Қазақ тiлi, автор: Akerke888

Жаңа сөздермен сөйлем құрау:
Қол үзу
қайғыға ұшырау
ажал
кеменің шөгуі

6 лет назад

Предмет: Геометрия, автор: Lindusya

Даны векторы а=2i-j+k и b=3i+2k. Найти модуль вектора а-2b

9 лет назад

Предмет: Геометрия, автор: Женя7класс

Определите вид треугольника, если одна его сторона= 5см, другая 3см, а периметр 14см

а)Равнобедр треуг.

б)равностороний треуг.

в)Разносторонний треуг.

г)Такой треугольник не существует

9 лет назад