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Collection of books in small and three places 196 volumes, including 20 volumes for Xiao Duo and 0/0 for Xiao Xiaoshao. How many copies do they each have?
If Xiao Xiao has x books, Xiao Pang has x+ 10 books, and Xiao Dingding has x+ 10+20 books, it can be listed in the equation x+(x+10)+(x+/kloc-0+20) =/kloc.
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