A+B+C+D= ?????
plzz help quick
更新1:
thx a lot
solve Math equations plzz help
回答 (1)
2010-10-07 5:39 am
✔ 最佳答案
A+1 = B+2 = C+3 = D+4 = A+B+C+D+5So(A+1) + (B+2) + (C+3) + (D+4) = (A+B+C+D+5) + (A+B+C+D+5) + (A+B+C+D+5) + (A+B+C+D+5)==>A+B+C+D + 1+2+3+4
= 4(A+B+C+D+5)==>A+B+C+D + 10
= 4(A+B+C+D) + 20==>3(A+B+C+D)
= - 10==>A+B+C+D = - 10/3
收錄日期: 2021-04-21 22:16:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101006000051KK01481