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Question summary: Ebatzi ondorengo ekuazio sistemak. Resuelve los siguientes sistemas de ecuaciones. [begin mathsize 12px style open table attributes columnalign right end attributes row cell y minus x equals negative 1 plus x end cell row cell x squared plus y squared equals 2 end cell end table close curly brackets end style] Emaitza bakarrik adierazi, ez ipini aldagaia. Lehenengo, X-en balio txikiena.
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Question state: todo