Question

determina nr naturale a,b,c
a+b=83
b+c=139
a+c=116 ​

Answer 1

Răspuns:

adunam cele 3 relatii si obtinem

2a+2b+2c=338 deci a+b+c=169

a=a+b+c-(b+c)=169-139 =30

a=30 => b =53 => c=86