Trei copii planteaza impreuna 82 de copaci.Afla cati copaci au plantat fiecare,stiind ca primii doi au plantat 54 iar ultimii doi 51.
Clasa I

1
a+2b+c=54+51=105=>b=105-82=23=>b=23->a=54-23=31->c=51-23=28
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2014-04-06T12:03:21+03:00
A+2b+c=54+51=105⇔b=105-82⇔b=23⇔a=54-23⇔a=31⇔c=51-23⇔c=28
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