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2014-10-07T18:46:05+03:00
5/6xa=175
5a=175x6
5a=1050
a=210

2/3xb=962
2b=3x962
2b=2886
b=1443

7/10xc=420
7c=420x10
7c=4200
c=600

a+b+c=210+1443+600=2253
2/3x2253=1502
1502=1502