化简 -2(x-3y)+3(2x-y)-(2x+3y)
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化简 -2(x-3y)+3(2x-y)-(2x+3y)
化简 -2(x-3y)+3(2x-y)-(2x+3y)
化简 -2(x-3y)+3(2x-y)-(2x+3y)
-2(x-3y)+3(2x-y)-(2x+3y)
=-2x+6y+6x-3y-2x-3y
=(-2+6-2)x+(6-3-3)y
=2x
-2(x-3y)+3(2x-y)-(2x+3y)
=-2x+6y+6x-3y-2x-3y
=2x
-2(x-3y)+3(2x-y)-(2x+3y)
=-2x+6y+6x-3y-2x-3y
=2x
-2(x-3y)+3(2x-y)-(2x+3y)
=-2x+6y+6x-3y-2x-3y
=(-2x+6x-2x)+(6y-3y-3y)
=2x
-2(x-3y)+3(2x-y)-(2x+3y)
=-2x+6y+6x-3y-2x-3y
=2x
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