Question 1125632
<pre>
                       SPEED            TIME(hours)   DISTANCE(miles)

GONE TO MOUNTAINS        r                 8           d

BACK TO HOME            r+16               6           d
</pre>


{{{system(8r=d,6(r+16)=d)}}}


{{{6r+6*16=d}}}

{{{6(d/8)+6*16=d}}}

{{{3d/4+6*16=d}}}

{{{6*16=d/4}}}

{{{d=4*6*16}}}

{{{highlight(d=384)}}}{{{miles}}}