Răspunsuri

2014-04-01T15:36:31+03:00
A  |___a___|
b  |___a___||___a___|..13..|
c  |___a___||___a___|..13..||___a___||___a___|..13..|...13..|

7xa+13x4=346
4xa+52=346
7xa=294
a=42

b=2x42+13=97
c=4x42+13x3=168+39=207
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