Chapter 27 Binary Linear Equations

On this day, the weather was comfortable, Lan Xiaoyi listened to Song Ziyu's words, carefully dressed up in the style of a weak and quiet ancient lady, walked without a little wind, always smiled and did not show his teeth, and turned his hands into orchid fingers, from the hair to the toes, he had to show his foolish wisdom. Pen @ fun @ pavilion wWw. biqUgE。 ο½‰ο½Žο½†ο½

To put it simply, this scene is very painful.

Lan Xiaoyi followed behind Song Ziyu, and walked into the backyard weakly, except for the two elders who were sitting in danger, there were beauties with their own charms, everyone lined up in two rows and sat down face to face. Of course, it also includes the three little cuties who were sent in as a birthday gift with Lan Xiaoyi that day. When Lan Xiaoyi saw this scene, he suddenly felt very magnificent, how could this rich family be like the emperor choosing a concubine?

As soon as Lan Xiaoyi saw the two elders, before he could look carefully, he lowered his head awkwardly and made a delicate gesture, and said softly: "Lan Xiaoyi has asked the lord and the lady to say goodbye." ”

Song Ziyu's father's name is Song Shao, it is said that he is rich for nine generations, Lan Xiaoyi glanced up, this uncle is not at all like Lan Xiaoyi's imagination of a calculating businessman with a fat brain, it can probably be said that he looks dignified. And sitting next to him was Song Ziyu's mother, named Liu Rumei, the daughter of the wealthy Liu family in Jiangnan, Lan Xiaoyi was extremely amazed when she saw her. To say that she is also nearly forty years old, but her skin is still like condensed fat, her skin is frighteningly good, and the most important thing is that there is no square dance aunt in her demeanor and eyes, and her temperament is called a noble. No wonder Song Ziyu is so good-looking, this gene is here.

Lan Xiaoyi stood respectfully to the side after making a gesture, Song Ziyu smiled at her with a pompous expression, and was as embarrassed as she was when her eyes met. Fortunately, Liu Rumei smiled slightly, her eyebrows and eyes were crooked, and she said, "It turns out that you are Lan Xiaoyi, and Yu'er told you in front of us." Like many girls, sit down first. ”

Lan Xiaoyi smiled and thanked her, and Xiao Xiaobu slowly retreated and sat on the empty mahogany chair. Lan Xiaoyi turned her head and smiled politely at her, it was just a greeting between acquaintances, but Li Xiumei twisted her little brows and shook her head proudly. Then, he looked at Song Ziyu with a gentle and watery gaze. Of course, Li Xiumei is not the only one, other girls have not done as well, and their bodies seem to be gouged out by their eyes dozens of holes.

This......

The corners of Lan Xiaoyi's mouth twitched, these fourteen or fifteen-year-old girls were provoking themselves? Lan Xiaoyi, Lan Xiaoyi, how did you get to the point where you became the public enemy of the flower girl?

Lan Xiaoyi was miserable in her heart, hey, little sister, sister, I really don't want to rob your sweetheart. But how can you do everything as you want?

Lan Xiaoyi is also very helpless, but with her characteristics of being in a good mood when she sees handsome guys and beauties, today's meeting is not difficult. As long as you follow Song Ziyu's plan and act in a play.

After Lan Xiaoyi sat down, Liu Rumei turned her head slightly, and an aunt walked out beside her, and she was the type of Fang Mama who did not change her face. She glanced at the two rows of girls and said in a straight voice, "Now, please choose your tools freely and complete this question." ”

Well? As soon as the aunt finished speaking, four strong men came up from behind her, two of them carrying a long table, which was full of paper, pens, abacus and other things. The other two carried a framed piece of paper, and when they looked closely, they saw that there were still words written on it.

"A has five stones less grain than B, A transports two-thirds of it, and B transports two-fifths of it, and then B has twice as much grain as A's grain, and asks A and B how many stones of grain each have in store?" After the aunt read it out loud, the girls were full of suspicion and exchanged words.

Lan Xiaoyi wanted to turn around and gossip with Li Xiumei, but the little girl had already snorted and turned her head. The girls present paired up in pairs and communicated vividly, only Lan Xiaoyi looked at Song Ziyu pitifully.

Lan Xiaoyi said with a lip shape: This is different from what I said, isn't it singing, dancing and painting?

Song Ziyu was quite indifferent, and replied to her with a lip shape: It's okay, don't worry before the time comes.

Lan Xiaoyi thought about it, anyway, the previous ones are just foreshadowing, don't you just wait for the last good show, and act when you have the opportunity. At this point, the venue was in disarray, but the girls never stepped forward to get any tools. Lan Xiaoyi turned her gaze to the piece of paper, and couldn't help pursing her lips and snickering, it is really the style of a businessman, and you have to take this kind of math problem when choosing a daughter-in-law? She quietly set her eyes on the old lady, and when she saw them drinking tea and chatting, her expression was as indifferent as that of their precious son. Sure enough, those who achieve great things have a very strong psychological quality.

Lan Xiaoyi read the question again, thinking that it wouldn't be a trick if it was so simple, right? I read it a few times again, and this is indeed a binary equation application problem for junior high school students, or the kind of scoring problem. She looked around, and the girls were still silent, so she got up and walked to the long table full of tools.

The moment she got up, the audience fell silent for a moment, and their eyes were cast on her, and even the old lady put down her teacup and looked at her with interest. Joke, this kind of topic can't be calculated, how can she be worthy of her identity as the representative of the math class in the three years of junior high school?

Lan Xiaoyi took a pen and paper, ignored others, and returned to his seat. Song Ziyu muttered a few words to the little ones on the left and right, and the two of them came over with a small table. Lan Xiaoyi smiled gratefully, but she didn't know that many beauties around her also learned from her to take paper and pencils, and a few took abacus. She just buried herself in the calculations, while the girls held the abacus of paper money and didn't know what to do.

Lan Xiaoyi, like most girls, was partial to her subjects when she was a student, and her Chinese and English were among the best, but her math was not top-notch. But she likes to do math problems.

Lan Xiaoyi has listed the equations, let A have x stones, B has y stones, then the listed binary equation system is: x+5=y; 2(x-2/3x)=y-2/5y.Next, just solve this equation, Lan Xiaoyi dipped a brush in ink and quickly calculated on the paper, completely unaware that the audience was unusually quiet because of her actions.

In the end, Lan Xiaoyi finally waved his pen, and the answer jumped out on the paper. x=45,y=50.Lan Xiaoyi put down the pen and slowly raised his hand.

The aunt pointed at Lan Xiaoyi and said, "This girl has calculated the answer?" ”

Lan Xiaoyi replied: "Yes." ”

"Then please report the answer."

Lan Xiaoyi stood up and said neither humbly nor arrogantly: "A has 45 stones, and B has 50 stones." ”

Everyone was in an uproar, Song Shao and Liu Rumei nodded and smiled, Song Ziyu half-squinted beside him, shaking the folding fan, and his face showed a subtle sense of pride?

The aunt looked surprised and said, "The answer is correct." After speaking, he looked at Song Shao and Liu Rumei, Liu Rumei waved her hand to signal her to step back, and then smiled: "Miss Lan is really extraordinary." ”

Lan Xiaoyi touched the back of her head and smiled, glanced at Song Ziyu, and raised her eyebrows at him, you see, this girl doesn't need your ghost plan at all, this girl is definitely the best candidate for her daughter-in-law.

Song Ziyu didn't react to her raised eyebrows, still fanning her fan, looking like she had nothing to do with herself.

When Lan Xiaoyi turned her head, ready to continue to greet the compliments or amazements of everyone present, Liu Rumei said, "Miss Lan, why are you still stunned?" Sit down, let's get down to business......"

Shrimp? Getting down to business? What does that junior high school math problem mean?

――――There will be two changes later――――