5/2x-15=(5/3x+15)*3/1怎样算?
问题描述:
5/2x-15=(5/3x+15)*3/1怎样算?
答
5/2x-15=(5/3x+15)*3/1
5/2x-15=(5/3x+15)*3
5/2x-15=15/3x+45
5/2x-15=5/x+45
5/2x-5/x=60
(5-10)/2x=60
-5=120x
x=-1/24