Răspunsuri

2014-05-13T19:23:14+03:00
A+b+c=18
b-3=a
b+3=c

b-3  +b  +b+3=18
3b=18
b=6
a=6-3=3
b=6+3=9
2014-05-13T19:45:06+03:00
A+b+c=18         b=3+a=c-3
b*3=18         b/3=6
a=6-3=3
 b=6+3=9
c=18-(3+9)=6