數學題請幫手

49+x=87
49+x-49=84-49
x=35

2007-04-23 16:15:13 補充：
唔係arthis not correc!!49 x=8749 x-49=84-49x=38

49+X=87
=
X=87-49

.
. .X=38

49+X=87
X = 87 - 49
X=28

2007-04-23 17:02:08 補充：
x=38

49+X=87
49+X-49=87-49
X=38

答案是﹕
49＋Ｘ＝87
49十Ｘ一49＝87一49
Ｘ＝38

49+X=87
49+X-49=87-49
X=38

Ｘ＝38.

４９＋ｘ＝８７

ｘ＝８７－４９

ｘ＝３８

2007-04-23 16:10:29 補充：
http://www.hkedcity.net/iclub_files/a/1/237/webpage/question/more.htm＞＞＞趣味數學題

49＋Ｘ＝87
X = 87 - 49
X = 38