Question

afla trei numere stiind ca a+b=66,b+c = 53,a+c=93

Answer 1

a+b=66 b+c=53 a+c=93 Vom aduna toate cele trei relatii si obtinem: 2a+2b+2c=212 2(a+b+c)=212 a+b+c=106=>66+c=106=>c=106-66=40 b+c=53=>b+40=53=>b=53-40=>b=13 a+c=93=>a+40=93=>a=93-40=>a=53

Answer 2

A+b+b+c+a+c=66+53+93
=119+93
=212
2a+2b+2c=212
A+b+c=106
66+c=106
C=106-66
C=40
B+c=53
B=53-40
B=13
A=66-13
A=53