Question
There were some children in the classroom. After 10 girls left the classroom and 26 boys entered the classroom, there were 179 children in the classroom. How many children were there in the classroom at first?
2 m

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There were some children in the classroom. After 10 girls left the classroom and 26 boys entered the classroom, there were 179 children in the classroom. How many children were there in the classroom at first?