(500 x-300)/(x-500)=1.2怎么算_数学解答

(500 x-300)/(x-500)=1.2怎么算

人气：258 ℃　时间：2020-02-02 23:59:04

解答

(500 x-300)/(x-500)=1.2
(500 x-300)/(x-500)=6/5
5(500 x-300)=6(x-500)
2500x-1500=6x-3000
x（2500-6）=1500-3000
x=-1500/2494
x=-0.6