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a+b+c=812 a+b=524 b+c=633 . a,b,c=?

Răspuns :

a+b+c=812
a+b=524
=>c=812-524
c=288
b+c=633
=>a=812-633
a=179
=>b=345
524 +c=812/-524
c=288
b+c=633
b+288=633/-288
b=345
a+b=524
a+345=524/-345
a=179
Verificare:179+345+288=812
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