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您好: 3X=24-X 3x+x=24 4x=24 x=6 如果本題有什麼不明白可以追問,如果滿意請點擊“選為滿意答案” 如果有其他問題請採納本題后另發點擊向我求助,答題不易,請諒解,謝謝. 祝學習進步!
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