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23#
發表於 2009-3-26 01:29 PM
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pure mathwww1.tvboxnow.com# c4 g$ O! M+ P1 U& D( C. c
# A( N! G5 v' r0 Q$ E$ E% `[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
7 L. `; t' H9 L8 |3 X! ywww1.tvboxnow.comwww1.tvboxnow.com1 K/ _+ ?3 \) R6 T/ R+ y
if x = 111 y = 2222, you number is 111-2222 |
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