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2014-11-16T19:11:33+02:00
A:b/2=7 rest 3⇒a=7·b/2+3
a+b=930
7b/2+3+b=930
(7b/2+b)=930-3
(7b+2b)/2=927
9b=927·2
b=1854/9
b=206
a=930-206
a=724

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