Question 353507
From the given, 
{{{n = s + 8}}} (1)
{{{s = m + 3}}} (2)
{{{m = n - 11}}} (3)
{{{n + s + m = 65}}} (4)
Putting equation (3) into (4), we get 
{{{n + s +(n - 11) = 65}}}  
Thus {{{2n + s = 76}}}   (5)
Putting equation (1) into (5),
{{{2*(s+8)+ s= 76}}},
{{{2s + 16 +s =76}}},
{{{3s = 60}}}, or {{{s = 20}}}.
Thus Steven is 20 years old.
from equation (2), {{{20 = m + 3}}}, or {{{m = 17}}}.
Therefore megan is 17 yrs old.