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Sfaturi3
a fost răspuns

a+b+c=7766
a+c=4531
b+c=6111
a;b;c=?
 

Răspuns :

CarMina03
a+b+c=7766a+c=4531⇒b+4531=7766⇒b=7766-4531=3235  b=3235

b+c=6111 si b=3235⇒  3235+c=6111⇒c=6111-3235=2876    c=2876

a+c=4531 si c=2876⇒ a+2876=4531⇒a=4531-2876=1655  a=1655

verificare a+b+c=1655+3235+2876=4879+2876=7766




DudulinaTeo
a+b+c=7766
a+c=4531
---------------  -
⇒b=3235

b+c=6111
b=3235
-------------  -
⇒c=2876

a+c=4531
c=2876
----------- -
⇒a=1655

probaP: a+b+c=1655+3235+2876=7766

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