Răspuns :
Salut!
Răspuns: 16; 12; 4 ✅
a + b = 28
b + c = 16
c + a = 20
a + b + b + c = 28 + 16
a + 2b + c = 44
20 + 2b = 44
2b = 44 - 20
2b = 24
b = 24 : 2
b = 12 ✅
a + 12 = 28
a = 28 - 12
a = 16 ✅
c + 16 = 20
c = 20 - 16
c = 4 ✅
Răspuns:
a + b = 28
b + c = 16
c + a = 20 ( + )
2a + 2b + 2c = 64 |:2
a + b + c = 32
a + b = 28
28 + c = 32
c = 32 - 28
c = 4
b + 4 = 16
b = 16 - 4
b = 12
a + 12 = 28
a = 28 - 12
a = 14
Verificare:
14 + 12 + 4 = 28 (Adevarat)