Предмет: Математика, автор: Аноним

Решите систему уравнений способом сложения {3х+2у=5 {х-2у=-1​

Ответы

Автор ответа: viktoria1448
1
3х+2у=5
х-2у=-1

3х+2у+х-2у=5-1
4х=4
х=1

3+2у=5
2у=5-3
2у=2
у=1

Ответ: (1; 1)

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Hi I�m Dino, the family dog. I help keep people safe; especially on the roads. Take a look at
my diary to see what I did last week.

SUN
Some children really don�t think. Our neighbour�s boy ran in front of a car to get his ball. The
car almost hit him. I saved him though. Remember, always look and listen.

MON
Walking on the street at night can be very dangerous, especially if you wear dark clothes. Car
drivers can�t see you very well, just like these two I had to take home. Luckily I never go out
without my reflective jacket and collar. Remember, BE SEEN!

TUE
People can get very angry when driving, usually for silly reasons. One driver started shouting
at Mum today when she stopped to let some children cross the road. I soon made him stop.

WED
One thing makes me really mad. Grrrrrr. People walking on a dangerous road when they can
walk on the safe pavement. I saw two girls doing that today, but I soon made them change
their minds.

THU
Seat belts can save YOUR life! I make sure everyone in our car wears their seat belt. If they
forget, I soon remind them. Even I�ve got one.

FRI
I like Fridays. The roads are quieter. But you still have to be careful. I caught dad talking on
his mobile phone while driving. I soon stopped him though. Don�t worry he got his phone
back.

SAT
Today mum took me for a walk. One car was parked in a very dangerous place. It was right
on the corner of the street. Don�t worry though, I left him a message.
8 лет назад