y=a+bx/c+dx
y(c+dx)=a+bx
yc+dxy=a+bx
yc-a=bx-dxy
yc-a=x(b-dy)
yc-a/b-dy=x
x=yc-a/b-dy
&x=a-yc/dy-b------------------------WHY NEED THIS PART??
收錄日期: 2021-04-12 23:22:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061029000051KK04043