化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z

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化简(2x-3y)+(5x+4y)(8a-7b)-(4a-5b)a-(2a+b)+2(a-2b)3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z化简(2x-3y)+(5x+4y)(

化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z
化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)
(8x-3y)-(4x+3y-z)+2z

化简 (2x-3y)+(5x+4y) (8a-7b)-(4a-5b) a-(2a+b)+2(a-2b) 3(5x+4)-(3x-5)(8x-3y)-(4x+3y-z)+2z
7x+y 4a-2b a-5b 12x+17 4x-6y+3z