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甲休息了2天，乙休息了8天，问开始到完工，共用了几天？怎么求？
数学7上,一元一次方程应用题，甲休息了2天，乙休息了8天，问开始到完工，共用了几天？怎么求？
七年级数学，一元一次方程应用题，各种类别的题型，这里都有详解380/581
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