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Matematica E Simpla • View topic - Sisteme de 2 ecuatii cu 3 necunoscute

Matematica E Simpla

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bogdan98nitu
 Post subject: Sisteme de 2 ecuatii cu 3 necunoscute
PostPosted: Mon Dec 15, 2008 2:25 pm 
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Joined: Mon Dec 01, 2008 3:20 pm
Posts: 14
Location: Ialomita-Ograda
Enunt:
Sa se afle numarul a, stiind ca:
a * b + a * c = 8731644 si b + c = 12
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Sergiu
 Post subject: Re: Sisteme de 2 ecuatii cu 3 necunoscute
PostPosted: Mon Dec 15, 2008 6:49 pm 
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Joined: Wed Oct 22, 2008 6:27 pm
Posts: 29
Rezolvare:
a * b + a * c = a * (b + c) = a * 12 = 8731644

Deci, a = 8731644 / 12 =
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