填空:2x-y-( )=—x+2
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填空:2x-y-()=—x+2填空:2x-y-()=—x+2填空:2x-y-()=—x+2把2x-y移到等号右边,注意变号答案是-3x+y+23x-y-22x-y-(3x+2-y)=—x+2
填空:2x-y-( )=—x+2
填空:2x-y-( )=—x+2
填空:2x-y-( )=—x+2
把2x-y移到等号右边,注意变号
答案是-3x+y+2
3x-y-2
2x-y-(3x+2-y )=—x+2
填空:2x-y-( )=—x+2
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