(3/5x-1400)/2/5x=5/8方程怎么解
问题描述:
(3/5x-1400)/2/5x=5/8方程怎么解
答
(3/5x-1400)/2/5x=5/8
3x/5-1400=5/8×2x/5
3x/5-1400=10x/40
3x/5-1400=x/4
12x-28000=5x
7x=28000
x=4000