初中一元一次方程题.要解设,1.若关于x的方程(2-m)x2(二次方)+3mx-(5-2m)=0是一元一次方程,求这个方程的解.2.某工程共动用15辆挖运机.每台机器每小时能挖土3m³(三次)或运土2m³
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![初中一元一次方程题.要解设,1.若关于x的方程(2-m)x2(二次方)+3mx-(5-2m)=0是一元一次方程,求这个方程的解.2.某工程共动用15辆挖运机.每台机器每小时能挖土3m³(三次)或运土2m³](/uploads/image/z/1347305-41-5.jpg?t=%E5%88%9D%E4%B8%AD%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E9%A2%98.%E8%A6%81%E8%A7%A3%E8%AE%BE%2C1.%E8%8B%A5%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8B%EF%BC%882-m%EF%BC%89x2%EF%BC%88%E4%BA%8C%E6%AC%A1%E6%96%B9%EF%BC%89%2B3mx-%EF%BC%885-2m%EF%BC%89%3D0%E6%98%AF%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%2C%E6%B1%82%E8%BF%99%E4%B8%AA%E6%96%B9%E7%A8%8B%E7%9A%84%E8%A7%A3.2.%E6%9F%90%E5%B7%A5%E7%A8%8B%E5%85%B1%E5%8A%A8%E7%94%A815%E8%BE%86%E6%8C%96%E8%BF%90%E6%9C%BA.%E6%AF%8F%E5%8F%B0%E6%9C%BA%E5%99%A8%E6%AF%8F%E5%B0%8F%E6%97%B6%E8%83%BD%E6%8C%96%E5%9C%9F3m%26sup3%3B%EF%BC%88%E4%B8%89%E6%AC%A1%EF%BC%89%E6%88%96%E8%BF%90%E5%9C%9F2m%26sup3%3B)
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