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2014-09-21T18:17:34+03:00
673-32+146-(62:a+12)-55=689
62:a+12=732-689
62:a=43-12
a=62:31
a=2
6 3 6
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2014-09-21T18:19:32+03:00
546+127-32+146-(62:a+12)-55=689
546+127-32+146-62/a-12-55=689
720-62/a=689
31=62:a
a=2
5 5 5