(x+3.2)/250=(x-3.2)/90怎么解
问题描述:
(x+3.2)/250=(x-3.2)/90怎么解
答
(x+3.2)/250=(x-3.2)/90
(x+3.2)/(x-3.2)=25/9
2x/(x-3.2)=34/9
9x=17x-54.4
8x=54.4
x=6.8
经检验,x=6.8是原方程的根