Răspunsuri

2014-04-28T20:32:37+03:00
A+b+c=1032
b=3a
c-60=a/2
c=a/2 +60

a+3a+a/2+60=1032  aducem la acelasi numitor
2a+6a+a+120=2064
9a=2064-120
9a=1944
a=216
b=648
c=216/2+ 60= 108+60=168
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Cu placere !
2014-04-28T20:46:07+03:00
|---|---|nr1
|---|---|---|---|---|---|nr2
|---|+60nr3
1032-60=972   972:9=108un sg
108x2=216nr1
108x6=648nr2
108+60=168nr3