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Se dau relatiile:
m+n=196; n+p=422; m+p=378
Afla numerele.


Răspuns :

m+n+n+p+m+p=2m+2n+2p=196+422+378=>2(m+n+p)=996=>m+n+p=996:2=>
m+n+p=498

p=498-196=302
m=498-422=76
n=498-378=120
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