Vexation.. Extra points, more points for a good answer? ）

LZ and I are among the same people.

Life is boring.

Few friends

Relationship in general. Speechless among female classmates or friends.

Oh. Let's talk

This is a common problem among adolescent teenagers. If you don't have a good friend you can trust, you can try to talk to your parents, they will always be your best listeners, and it will be helpful to listen to their opinions. I used to think that this was also annoying, and when I was at school, I was always joking and joking, and my classmates thought I should be bothered, but God knows that when I got home, I became a completely different person, and I didn't like to talk and was completely depressed.

But then you get older, you will understand a lot of things, don't be pessimistic, believe that everything will get better, everything will be really good!

Junior high school students, how old they are, are very naïve, so do some childish things, say childish things.

Understandable. If the teacher asks you, if you don't want to say it, just say you don't know, you don't have to be honest.

Learn to protect yourself.

The thing about friends is that because you're young, you don't understand what friends really mean.

First of all, if you can get a real friend in this life, it is God's love.

It's not just you, a lot of people, people of all ages, who are struggling with relationships.

That's normal, and that means you're living in society, isn't it?

You're at the age when you start to notice yourself, you notice the evaluation around you.

It's easy to feel like you're doing something as if the whole world is watching you.

Actually, that's just my own delusion.

What friends are not friends, everyone is classmates.

Play with this for two days, play with that for two days.

This is normal. No matter how good a friend you are, he's not your own.

Your friends can find someone else to hang out with, and so can you.

You should pay more attention to your own learning.

Take good care of your body and be healthy.

Treat your parents well and be a filial child.

As for those friends, now study with everyone, just cherish them.

But you don't have to think of anyone as anything -- it's my lifelong friend or something.

When you go to high school, when you go to college, you'll find out.

Those former friends are just passers-by who take turns on a rotational basis.

Of course, among these passers-by, there may be one or two people who are very close to each other and can be true friends.

Even then, don't force it.

Just go with the flow. You're young, and if you're scared, talk to your mom and dad.

If you're upset with your friends, argue with them.

It's all normal.

In short, be honest, don't always think about yourself.

You are a very healthy child.

Hehe, don't think too much about it, I'm about your age, like this is something in our class. By a girl who is very good to me, his parents are in Singapore, he and his grandmother are at home, do the shuttle bus every day, his home is in Lingkm! He has to make a shuttle bus for more than 1 hour every day, and when he arrives at the station, his parents still don't pick him up, and he is afraid of being alone.

He's just always worried about this and that, he's very vigilant, and he's always afraid. So you don't have to think too much about it.

1. Substituting Yuanqing x=2, y=1 into ax+y=5, the solution is a=2, and b=3;

Substituting x=1 and y=2 into x-by=-1 gives b=1 and a=3.

2. ax+y=5, the whole formula is multiplied by b, and abx+by=5b, and x-by=-1 is quietly added before, then there is luck (ab+1)x=5b-1, so, x=(5b-1) (ab+1), substituted ax+y=5, the solution is y=5-(5b-1) (ab+1)=(5ab-5b+6) (ab+1).

So, x=(5b-1) (ab+1), y=)=5ab-5b+6) (ab+1).

ab is not equal to -1).

Substitute their solution into the equation and guess Li, and calculate A's a and B's, and what you get is the number they see as macro.

Then the omen takes A's b and B's a, obtains the original equation, and the answer to (2) comes out.

ax+y=5,x-by=-1A misreads the equation A of the hungry brigade, and the solution is x=2,y=1. Put the numbers in the equation and you will get a = how much, and b = how much.

In the same way, ax+y=5, x-by=-1, B reads the bad stool b in the wrong equation, and puts the number or celery in the equation, and will get a=how much, and b=how much.

Give it a try.

a:b=4:1=16:4

b:c=4:1

So a:b:c=16:4:1

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If you have any new questions, please ask me for help, (but don't ask here) it is not easy to answer the questions, please understand......