X-21-1/4X-（21+1/4X）=12.5%,这个方程怎样解

分类: 作业答案 • 2022-04-16 21:16:54

问题描述：

答

x-21-1/4x-21-1/4x=12.5%
1/2x-42=12.5%
1/2x=12.5%+42=42.125
x=84.25

答

X-21-1/4X-21-1/4X=0.125
X-1/4X-1/4X=0.125+21+21
1/2X=42.125
X=84.25

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