Question

Aflati suma numerelor a si b , daca a+2b=733, iar 2a+b=125

Answer 1

a + 2b = 733

2a + b =125
___________

3a + 3b = 858 ⇒ 3(a + b) = 858|:3 ⇒ a + b = 286.

Answer 2

[tex]a+2b=733\\ 2a+b=125\\ -----\\ 3a+3b=858=\ \textgreater \ 3(a+b)=358=\ \textgreater \ a+b=858:3=\ \textgreater \ a+b=286[/tex]