[tex]\displaystyle \\
x+y = 855 \\
y = x+186 \\
--- \\
.~~x+y = 855 \\
-x+y = 86 \\
\text{- - - - - - - - - - - adunam ecuatiile} \\
/ ~~~~~~2y = 941 \\ \\
y = \frac{941}{2}= \boxed{470,5} \\ \\
x + y = 855 ~~\Longrightarrow~~ x = 855-y = 855-470,5 =\boxed{384,5}[/tex]
