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Ancient calculation of binary linear equations: I only heard that the people next door were given money, but I don't know how many people there are.
A popular topic in our country: only give money to the people next door, I don't know how much money and people; 7 per person under two, 7 per person, half a catty and half a person; How many people share how much silver? (Note: gold here refers to gold, 1 gold = 10 Liang)

There are x people and y silver. According to the meaning of the question, you get

y=7x-7

y=5x+5

solve

x=6

y=35

Answer: Six people are divided into 35 taels of silver.

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