Question

Calculeaza numerele necunoscute cu ajutorul urmatoarelor relatii:a)
a+b+c=95
a+b. =72
b+c=55
b)
x+c+z=79
x+y. =37
y+z=55

Answer 1

a)a+b+c=95
a+b=72=>72+c=95=>c=23
b+c=55=>b=55-23=22
a=72-b=72-22=50

b)x+y+z=79
x+y=37=>z=79-37=42
y+z=55=>x=79-55=24
y=37-24=13