Question

aflati numarul x stiind ca media aritmetica a numerelor 36 si x este 137. merci anticipat!

Answer 1

m.a. (36,x) = 137.
(36+x) : 2= 137
36+x= 137 x 2 = 274.
x= 274-36.
x=238. 

Answer 2

$\frac{36+x}{2}=137\;\;;\;\;36+x=137\cdot2\rightarrow\;\fbox{x=238}$