X-21-1/4X-(21+1/4X)=12.5%,这个方程怎样解
问题描述:
X-21-1/4X-(21+1/4X)=12.5%,这个方程怎样解
答
X-21-1/4X-(21+1/4X)=12.5%
X-21-1/4X-21-1/4X=12.5%
X-42-1/2x=0.125
1/2x=42.125
x=84.25