5x-17x-5-3x-235-x=______．

题型：填空题难度：一般来源：不详

5x-17

x-5

-

3x-23

5-x

=______．

答案

原式=

5x-17

x-5

+

3x-23

x-5

=

8x-40

x-5

=

8(x-5)

x-5

=8．
故答案为：8