Răspunsuri

2014-05-17T13:30:55+03:00
A+b+c=912
a+3=b
3b=c
b=c/3

a+3=c/3
a=c/3 -3

c/3-3 + c/3 +c =912  aducem la acelasi numitor
c -9 +c +3c=2 736
5c= 2 736+9
5c=2745
c=549
a=549/3-3=  183-3=180
b=549/3= 183
1 4 1