a+b+c+d=200
+ Q$ I9 |; l0 t; C公仔箱論壇4x-8-16-24=200
5 T/ _" Q! w! k' v" b; qtvb now,tvbnow,bttvb4x-8(1+2+3)=200
+ r. y) ]2 z5 O4 A- F3 V7 htvb now,tvbnow,bttvb4x-8(6)= 200公仔箱論壇" e' @7 A0 r' ?& L6 b
4x=200+8(6)
. r- N8 Q, v4 r2 m- ?x=248/4tvb now,tvbnow,bttvb. R! i+ p! B }- {3 q
62 |