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Ask a few junior high school math application questions, the answers are all a lot of words, and you have to get high marks in the eighth grade! ! ! ! !
One. A pile of toys was distributed to several children. If each child has three toys, there are four extra toys. If everyone in front has four toys, the last person gets less than three toys. How many people and toys do you want? Need a detailed solution

Solution: There are X children and 3x+4 toys, which are expressed by the relation.

0≤ Last person's toy quantity < 3

Finally 1 toys = total number of toys-all toys in front, formula

0≤3x+4-4(x- 1)

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