Răspunsuri

2014-10-11T11:25:52+03:00
AXb=672
(a+10)oriB=ab+10b=992
dar stii ca ab=672 de unde rezulta ca 672+10b=992 echivalent cu 10b=320=>b=32
ab=672 <=>a32=672=>a=21
deci a=21
       b=32