作业帮化简 x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}过程一步一步的列好x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 04:31:41
![化简 x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}过程一步一步的列好x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}](/uploads/image/z/519393-57-3.jpg?t=%E5%8C%96%E7%AE%80+x-%5By-2x-%28x-y%29+-9-4%5B2x-5%28x%2B1%29%5D+2x-3%7By-%5B3x-%282y-x%29%5D-2x%7D%E8%BF%87%E7%A8%8B%E4%B8%80%E6%AD%A5%E4%B8%80%E6%AD%A5%E7%9A%84%E5%88%97%E5%A5%BDx-%5By-2x-%28x-y%29+-9-4%5B2x-5%28x%2B1%29%5D+2x-3%7By-%5B3x-%282y-x%29%5D-2x%7D)
化简 x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}过程一步一步的列好x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}
化简 x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}
过程一步一步的列好
x-[y-2x-(x-y)
-9-4[2x-5(x+1)]
2x-3{y-[3x-(2y-x)]-2x}
化简 x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}过程一步一步的列好x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}
x-[y-2x-(x-y) -9-4[2x-5(x+1)] 2x-3{y-[3x-(2y-x)]-2x}
=x-[y-2x-x+y] =-9-4[2x-5x-5] =2x-3{y-[3x-2y+x]-2x}
=x-y+2x+x-y =-9-8x+20x+20 =2x-3{y-3x+2y-x-2x}
=4x-2y =11+12x =2x-3y+9x-6y+3x+6x
=20x-9y