2x+5=9
need to show work is this correct?
2x +5 = 9
2x-5=9-5
2x=4
2x/2= 4/2
X=2
收錄日期: 2021-05-01 12:27:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090609230337AAIYFtc