3/0.2x-0.1-0.05/(x+2)%=0.1x

问题描述:

3/0.2x-0.1-0.05/(x+2)%=0.1x

3/0.2x-0.1-0.05/(x+2)%=0.1x
15x-0.1-5/(x+2)=0.1x
14.9x-0.1=5/x+2
149x-1=50/(x+2)
149x(x+2)-x-2=50
149x^2+297x-52=0