Răspunsuri

2014-01-28T17:28:09+02:00
A+b+c=47
b=2a
c=b+2=> c=2a+2
inlocuim: a+2a+2a+2=47=> 5a=47-2=>5a=45=>a=54/5=>a=9
b=2a=>b=2x9=>b=18
c=b+2=> c=2a+2=> c=2x9+2=.c=18+2=>c=20

sper sa fie bine :)

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2014-01-28T20:02:29+02:00
 47 minus 2 egal 45      45 impartit la5 egal 9 prima ladita     2 ori 9 egal 18 a doua ladita 18 plus 2 egal 20 a 3 a ladita

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