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2014-09-29T19:48:04+03:00
[(x+3) ori 3+3] ori 3+3=102
<=>[(x+3) ori 3+3] ori 3=102-3=99
<=>(x+3) ori 3 +3= 99: 3= 33
<=> (x+3) ori 3= 33-3=30
<=> x+3= 30: 3=10
<=> x= 10-3=7