Предмет: Математика, автор: эльмира138

решить систему уравнений даю 35баллов

Приложения:

Ответы

Автор ответа: TheWendyPlay

2у+3х=1
х=1-2у/3

6-12у/3-3у=30
18-36у-9у=90
-45у=72
у=(-1,6)

6х-3*(-1,6)=30
6х+4,8=30
6х=25,2
х=4,2

Автор ответа: эльмира138

это какое ур-е вы решили это не моё задание

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: prokden13

1. Vocabulary. What does Mick say about his school life? Fill in the gaps with the words from the box One word is extra. There's an example (0) at the beginning. miss, science, glad, going, means, discover, sunbathing, knowledge, sightseeing, according to, a highlight, field trips, look forward I like (0) going to school. I'm (1) ... when it starts. But I can't say that I (2) ... to school on holidays, especially on summer ones. In summer, I usually go (3) ... to different cities with my family and don't have time to (4) ... my friends and teachers. However, 1 September is (5) for me. I love not only school subjects, for example, (6) ... and English, but also after-school events, such as (7) ... and outings, as we (8) ... new things just in their original places. (9) ... learnt (m3 yuehhút) material, we do projects then. This activity extends our (10) ... of a subject. In case we don't understand anything, we can always ask our teachers what a notion (TIOHITHE) (11) .... 2. Grammar. The children are talking about school and school activities. Report what they say. (0) Susan says, "My class goes on a field trip on Friday. I think we'll enjoy it." Susan says that her class goes on a field trip on Friday. She thinks that they will enjoy it. 1) Allison says, "There are different competitions at my school. I think that I'll take part in competitions for the best essay and poems." 2) Josh says, “I am starting to learn new subjects. I worry that I don't have any helper in my homework." 3) Mia says, “On summer holidays, we went sunbathing on the roof of our summer house.” 4) Neil says, "My friend and I write articles for a school newspaper. But we are not always glad that we take part in producing our columns. 5) Julie says, "I don't like lessons starting with an assembly. I'm upset that we have to listen to a religious worship every day." 6) Justin says, "I am glad to be back to school. I'm happy that I do tests and homework right."

5 лет назад

Предмет: Алгебра, автор: kondratenkovakarina0

СРОЧНО ПОМОГИТЕ ДАМ 30 БАААААЛЛЛОООВВВ

5 лет назад

Предмет: Химия, автор: sashanazarov221105

поможить будьласка з химии

2,3 – дибром- 7- етил-3,6,6- триметилнонан;

3 – етил- 5,6,7 – триметил- 2,2 – дихлороктан;

5 лет назад

Предмет: Физика, автор: angelvfvf

автомобиль массой 3,2т движется по горизонтальному пути со скоростью 54 км/ч. на каком расстоянии автомобиль остановится,если при торможении сила трения равна 45 кН?

9 лет назад

Предмет: Математика, автор: ольга20002

21 килограмм свежей малины получается 3 килограмма сухой сколько взяли свежей малины если получили 5 килограмма сухой

9 лет назад