Răspuns :
Salut!
[tex] \frac{27 + b}{2} = 33.[/tex]
[tex]27 + b = 66[/tex]
[tex]b = 66 - 27[/tex]
[tex] \boxed {b = 39}[/tex]
[tex]verificare \: \frac{27 + 39}{3} = \frac{66}{3} = 33.[/tex]
Salut!
[tex] \frac{27 + b}{2} = 33.[/tex]
[tex]27 + b = 66[/tex]
[tex]b = 66 - 27[/tex]
[tex] \boxed {b = 39}[/tex]
[tex]verificare \: \frac{27 + 39}{3} = \frac{66}{3} = 33.[/tex]