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let 1st thing = Xtvb now,tvbnow,bttvb% I, X/ [! z9 z# S/ o5 l0 c/ I
     2nd thing=X+100
- c! p# }9 R3 h' J2 c5.39.217.77:88985.39.217.77:8898. B( V  \  A$ n7 J, s6 ]
X +( X+100) = 100.10" V5 r) J+ _0 Y. B7 p
2X + 100 = 100.10
4 J1 Q. g/ ?4 m2 v1 D  jtvb now,tvbnow,bttvb2X = 100.10 - 100 = 0.10tvb now,tvbnow,bttvb' S2 q  x6 o; W$ E! a( J
X = 0.10 / 2 = 0.05tvb now,tvbnow,bttvb9 c- |% g1 M4 C

( k3 }& S2 @8 I4 U1st thing = X = 0.05" U) p# f% [1 |. l3 t5 P
2nd thing = X+100 = 100.05