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2014-07-31T18:18:32+03:00
A) x<=43-19
   x<=24
   x=1,2,3.....24
b)x<=17
  x=1,2,3.....17
c)x+38-18<=83
   x+20<=83
   x<=83-20
   x<=63
   x=1,2,3......63
d)x+41-39<=83-77
  2+x<=6
  x<=6-2;
  x<=4
  x=1,2,3,4
25 4 25