Question

afla suma cifrelor a si b,stiind ca ab + ba= 132

Answer 1

$\overline{ab}=10a+b$

$\overline{ba}=10b+a$

$\overline{ab} + \overline{ba}=132$

$10a+b+10b+a=132$

$11a+11b=132$

$11(a+b)=132$

$a+b=132:11$

$\boxed{a+b=12}$