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2014-11-03T15:38:49+02:00


(A+B)/2=1430

A=B-28

(B-28+B)/2=1430, DE UNDE( 2*B-28)=1430*2, 2*B=2860+28, 2*B=2888, B=2888/2=1444

A=1444-28=1416

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