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(2014•莆田质检)计算:5xx−1-5x−1=.

题目详情
(2014•莆田质检)计算:
5x
x−1
-
5
x−1
=______.
▼优质解答
答案和解析
原式=
5x−5
x−1

=
5(x−1)
x−1

=5.
故答案为:5.