Răspunsuri

2014-05-09T16:20:25+03:00
A+b=177=> a=177-b
2a+3b=451

2(177-b)+3b=451
354-2b+3b=451
b=451-354
b=97

a=177-97
b=80
2 5 2
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2014-05-09T16:21:33+03:00
A+b=177⇒b=177-a
2a+3b=451
2a+3(177-a)=451
2a+531-3a=451
-a=451-531
-a=-80⇒a=80, b=177-80=97
4 4 4