王师傅每天做a个零件,张师傅比王师傅少做3个 那么4a表示( ) 4(a-3)表示( )当a=20时,4a=( ),4(a-3)=( )
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![王师傅每天做a个零件,张师傅比王师傅少做3个 那么4a表示( ) 4(a-3)表示( )当a=20时,4a=( ),4(a-3)=( )](/uploads/image/z/15256748-20-8.jpg?t=%E7%8E%8B%E5%B8%88%E5%82%85%E6%AF%8F%E5%A4%A9%E5%81%9Aa%E4%B8%AA%E9%9B%B6%E4%BB%B6%2C%E5%BC%A0%E5%B8%88%E5%82%85%E6%AF%94%E7%8E%8B%E5%B8%88%E5%82%85%E5%B0%91%E5%81%9A3%E4%B8%AA+%E9%82%A3%E4%B9%884a%E8%A1%A8%E7%A4%BA%EF%BC%88%E3%80%80%E3%80%80%E3%80%80%EF%BC%89+4%EF%BC%88a%EF%BC%8D3%EF%BC%89%E8%A1%A8%E7%A4%BA%EF%BC%88%E3%80%80%E3%80%80%E3%80%80%EF%BC%89%E5%BD%93a%EF%BC%9D20%E6%97%B6%2C4a%EF%BC%9D%EF%BC%88%E3%80%80%E3%80%80%E3%80%80%E3%80%80%EF%BC%89%2C4%EF%BC%88a%EF%BC%8D3%EF%BC%89%EF%BC%9D%EF%BC%88%E3%80%80%E3%80%80%E3%80%80%EF%BC%89)
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