bluelol

a+b+c+d=200
( b: v& V7 f7 G6 c  Q5.39.217.774x-8-16-24=2001 d7 h2 L3 x$ K+ X$ J0 z5 ?; \  v
4x-8(1+2+3)=200tvb now,tvbnow,bttvb: U' C' S, d; t6 s8 s
4x-8(6)= 200
& p. Q9 u3 d' k* D5.39.217.774x=200+8(6)* E1 {4 F. a" E
x=248/4公仔箱論壇# J, w6 X$ [3 _* z
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