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2014-11-11T19:59:08+02:00
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2014-11-11T20:06:41+02:00
3000- {492-[(x-813)/3-36]+1500}=1243
3000- [(1476-x+813-108)/3+1500}=1243
3000- (1476-x+813-108+4500)/3=1243
3000- (6681-x)/3=1243
9000-6681-x=3729
x= 3729-9000+6681
x=1410
2 2 2