Question 1064653
Find the center of the wall
{{{ 17/2 = 8.5 }}} ft
{{{ .5*12 = 6 }}} in
and
{{{ 5/2 = 2.5 }}} in
{{{ 6 + 2.5 = 8.5 }}} in
----------------------
The center of the wall is at 8 ft 8.5 in from the edge
----------------------
Find 1/2 of the width of the window
{{{ 75/2 = 37.5 }}} in
{{{ 37.5/12 }}} = {{{ 3 }}} ft + {{{ 1.5 }}} in
-------------------------------------
Now subtract 1/2 of the width of the window from 
1/2 the width of the wall
-------------------------
{{{ 8 - 3 = 5 }}} ft
{{{ 8.5 - 1.5 = 7 }}} in
--------------------
The left edge of the window is 5 ft 7 in from the 
left edge of the wall
--------------------
Also, the right edge of the window is 5 ft 7 in from
the right edge of the wall
--------------------------
check:
5 ft 7 in + 5 ft 7 in = 11 ft 2 in
and
{{{ 75/12 }}} = 6 ft 3 in
and
11 ft 2 in + 6 ft 3 in = 17 ft 5 in
OK