Just when the Taoist master was fully attacking Hongmeng Realm, Zishou had already subdued Yang Jun. According to what he learned, Yang Jun was a traveler from a certain world.

According to the law of time-travelers, no matter what experiences they have, every time-traveler will eventually possess great strength.

For example, Yang Jun obtained strange powers by accident, and thus quickly gained the strength of Hunyuan Daluo Jinxian.

This made Zi Shou ponder, so...should I go search for some time-travelers?

There is everything in the world.

He will not be the only time traveler.

It's just that he may have reached the Mythical Great Luo first.

What would happen if all the time-travelers were found?

Immediately, Zi Shou crossed the void, stretched out his hand to grab it, and a jade tablet appeared in his palm. This was the "system" he had refined, and it had the power to understand the world.

"System, help me search for all the time travelers!"

The Jade Bang operates, and a layer of precious light shrouds it in all directions.

Soon, a list appeared in front of him.

Zishou picked it up and looked at it, and his eyes suddenly narrowed.

There are actually as many as ten time-travelers on this list.

Zi Shou started to read: Yunming, the time traveler, comes from the xx area, the area he traveled to is xxx, and he is temporarily a mortal...

Li Zhichen comes from the xx area, the area he traveled to is xxx, and he is a mortal...

Xiao Jianhe, from the xx area, the area he traveled to is xxx, and he is a mortal...

…

Zi Shou frowned, "Why are they all mortals?"

"Although the time travelers I see now are all mortals, and everyone is in a different time and space, as long as I travel across time and space, go back to the time when they just traveled through, and give them the system I created, I will arrive in the future.

The world may be able to gain ten nine-turn saints!"

Zi Shou looked at the jade list in his hand, and his eyes suddenly lit up.

……………………

In a certain world, in a small courtyard house.

A man hugged a cat, looked up at the sky, and sighed.

His name is Yun Ming, and he is a time traveler. Unfortunately, he is still an ordinary person after traveling for ten years.

More than ten years ago, a system notification suddenly sounded in his mind, and he thought he was about to take off. As a result, there was no sound from the system, as if it had disappeared.

This made him wonder if he was hallucinating.

As expected, Ye Tianchi sincerely deceived me.

Over the years, in order to survive, he became a private school teacher under Mustard Mountain.

After leaving the courtyard, Yunming walked to the entrance of a small village at the foot of Mustard Mountain. At this time, a group of children had gathered at the entrance of the village, and there was no shortage of adults following them.

These people all came to listen to Yunming's lectures.

Seeing Yun Ming coming, the children greeted him one after another, and the adults also came over to get close to him.

"Teacher, these are eggs laid by my hens. My mother said I would take them home for you to make fried rice."

"Mr. Yun, I have freshly squeezed goat's milk. I can warm it up before eating it."

"Mr. Yun, do you want a wife? I'll introduce you to my distant cousin. Her name is Cuihua. If you want it, I'll bring it to you tonight."

"No need." Yunming smiled bitterly and gently rejected the kindness of these villagers. He came to the high platform built at the entrance of the village, spread out his textbooks, and began to teach.

What he is going to talk about today is mathematics!

There are very few people in this world who study mathematics.

Here, the average level of people in Chinese and mathematics is even lower than that of first- and second-grade primary school students.

Yunming teaches nearby. Firstly, the things he teaches are novel, and secondly, the people here are simple and simple, so many people come to listen to the lectures.

"What I'm going to talk about today is linear equations of one variable in mathematics."

Yun Ming spoke slowly, as if there was an invisible force in his voice, and the noisy adults and children fell silent.

…

At this moment, three men in Tsing Yi were coming slowly from the foot of Mustard Seed Mountain.

One of the tall and thin men said: "We searched the entire East Mustard Mountain, but we didn't find any Ganoderma lucidum, and I guess there isn't any in the west either."

Another short and fat man said: "Well, it's mostly rumors. Some time ago, I heard that there was a white snake that turned into a spirit in Mustard Seed Mountain. Alas, it's all false."

The woman in green on the left said: "We've all come here, why are we still giving up? Let's look for another day."

The voice of the woman in green is like a silver bell, extremely clear and sweet.

"Okay, then I'll listen to my junior sister." The tall and thin man said, looking at the woman in green with eyes full of admiration and longing.

These three people are practitioners of the Hidden Sword Sect in Feiyun Mountain, twenty miles away. They are senior brother Murong Lan, second senior brother Murong Qing, and third junior sister Bai Wuyun.

While they were talking, these three people moved quickly and had already arrived at the entrance of the village.

"What are these villagers doing here?" Murong Qing stopped.

"Let's go over and have a look." Junior sister Bai Wuyun was the youngest and most curious, so she trotted over immediately.

"This little junior sister..." Murong Lan shook her head and followed her.

At this time, Li Yunge was explaining the linear equation of one variable. When he saw three teenagers who came later, he took a look and continued his lecture.

Murong Lan squeezed in after Bai Wuyun, glanced at the villagers, then looked at Yun Ming in the stands, frowned and said: "Little junior sister, what's so good about teaching from the countryside?"

"Wait!" Bai Wuyun waved his hand, with a cute smile on his face: "Let me listen to what he is talking about."

Murong Lan said: "We still have to go up the mountain to find the elixir!"

Bai Wuyun looked at the white paper standing up behind Yun Ming. Suddenly, his beautiful eyes widened, his face full of surprise: "Is there mathematics on it?"

Murong Lan felt helpless. This little junior sister was curious about everything, especially those low-level mathematics, opera, etc., but it delayed her practice. The master told her several times, but she still didn't change.

Suddenly, Bai Wuyun exclaimed: "This... what is this? There are still unknowns... How can this be solved?"

Then he realized that his voice was too loud, causing the villagers nearby to look over and shut up in a hurry.

Murong Lan looked at what Yun Ming wrote on the cardboard with a pen and frowned: "5(x4)=3(x5), find the unknown number x, what the hell is this?"

Although the disciples of the Hidden Sword Sect focus on cultivation, they have also had some exposure to simple mathematics.

With Murong Lan's knowledge, he couldn't recognize the above formula.

"It's probably something that a country man scribbled casually. I've never heard of some unknown number x, so how can I possibly figure it out?" Murong Qing shook his head.

"It is not difficult to solve a linear equation." Yun Ming naturally heard the conversation between the three people behind him, but he was too lazy to pay attention to it and continued: "First remove the denominator, then move the terms, and then combine similar terms, also called merging.

In this step, the coefficient is changed to 1, and the unknown x can be obtained as negative two-half."

As he talked, he wrote down the process on a piece of white paper: "This linear equation of one variable may seem difficult, but it's actually not. All you need to do is simplify the complicated, reduce the more to the less, and patiently solve it step by step, and you will finally get the result."

."

During this process, Bai Wuyun watched intently until the result was finally obtained. Her eyes lit up as if she had thought of something, and she murmured: "This... this... so that's how it is..."

"Make the complex into simplicity, the many into the few... Isn't this the secret of swordsmanship of the Hidden Sword Sect? Whenever you encounter an enemy, no matter how complicated the opponent's moves are, as long as you can see clearly where the opponent wants to stab, no matter how you change the moves, you will always be able to

There is a way to break it."

"This question is profound and difficult to understand. The so-called unknown number x refers to the changing moves in swordsmanship. This question actually hides the profound meaning of swordsmanship!"

Although Bai Wuyun is the youngest disciple of the Hidden Sword Sect, he is also the one with the highest talent and the strongest understanding.

Her pair of clear autumn eyes stared closely at the question on the white paper, and something obscure in her mind suddenly became clear at this moment!

"Woo..."

Murong Lan noticed Bai Wuyun's change, and her expression changed: "Little junior sister, you seem to have had an epiphany?"

Upon seeing this, Murong Qing stood next to Bai Wuyun and set up a Qi barrier to prevent others from disturbing her enlightenment process.

Bai Wuyun felt that the true energy in his body had gathered together at this moment, and surged up. It was like an enlightenment, and he had understood many obscure secrets in an instant.

As her body trembled slightly, her eyes opened, and the breath on her body slowly calmed down.

Breakthrough...

Golden Immortal level!

I didn’t expect that Ka Zhenxian would break through to the Golden Immortal realm after just listening to a question for so long...

This math problem definitely hides a profound truth!

During this process, Yun Ming did not pay attention, but gave another example.

It's a pity that although the adults and children in the audience did not become drowsy after listening to it, they were also listless.
To be continued...