Răspunsuri

2014-09-21T18:05:00+03:00
A+b+c=4500 a=2b c=b+5
2b+b+b+5=4500
4b+5=4500
4b=4500-5
4b=4495
b=4495/4
b=1123,75
a=2247,5
c=1128,75
2014-09-21T18:08:26+03:00
A+b+c=4500
a=2b
c=5+b
2b+b+5+b=4500
4b=4495
b=4495:4
b=1123,75
a=2x1123,75
a=2247,5
c=1123,75+5
c=1128,75
proba
2247,5+1123,75+1128,75
=4500