Răspunsuri

2014-04-19T17:48:09+03:00
A+b=306  a=306-b
a-b=b/4
306-b-b=b/4  aducem la acelasi numitor
1224-4b-4b=b
-8b-b=-1224
-9b=-1224
9b=1224
b=136   a=170
8 3 8