化简(4x-2y)-[5x-(8y-2x-x-y)]+x
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化简(4x-2y)-[5x-(8y-2x-x-y)]+x化简(4x-2y)-[5x-(8y-2x-x-y)]+x化简(4x-2y)-[5x-(8y-2x-x-y)]+x(4x-2y)-[5x-(8y-
化简(4x-2y)-[5x-(8y-2x-x-y)]+x
化简(4x-2y)-[5x-(8y-2x-x-y)]+x
化简(4x-2y)-[5x-(8y-2x-x-y)]+x
(4x-2y)-[5x-(8y-2x-x-y)]+x
=(4x-2y)-5x+(8y-2x-x-y)+x
=4x-2y-4x-(8y-2x-x-y)
=-2y-(8y-2x-x-y)
=-2y-7y+3x
=-9y+3x
=-3（3y-x）
原式=(4x-2y)-(5x-8y+2x+x+y)+x=4x-2y-5x+8y-2x-x-y+x=-3x+5y
(4x-2y)-[5x-(8y-2x-x-y)]+x
=4x-2y-5x+8y-2x-x-y+x
=-3x+5y
5y-3x