Răspunsuri

2014-05-22T17:24:32+03:00
A+b/2=3.09
a+b=2*3.09
a+b=6.18
a=2b
2b+b=6.18
3b=6.18
b=6.18:3
b=2.06

a=2.06*2
a=4.12