Question 1076517
<pre>
                  SPEED      TIME      DISTANCE
BIKE               9          b          9b
WALK               2          w          2w
Total                         9          60
</pre>


{{{w=9-b}}}
-
{{{9b+2w=60}}}
{{{9b+2(9-b)=60}}}
{{{9b+18-2b=60}}}
{{{7b=60-18}}}
{{{7b=42}}}
{{{highlight(b=6)}}}-----Hours by bike


{{{highlight(w=3)}}}-------hours walking