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Se stie ca : ab+ac=310 si b+c=10 Aflati: a=???
Repedeeee va rog!!!!


Răspuns :

ab+ac = 310
a(b+c) = 310
b+c = 10 → a(b+c) = 310

a•10 = 310
a = 310:10
a = 31.


* Sign Of The Times *
a*(b+c)=310
a*10=310
a=310:10
a=31
Coroana te rog!