Question 1103320
<pre>
             SPEED       TIME         DISTANCE
WALK          4          {{{d/4}}}             d
RIDE          8          {{{d/8}}}             d
ALL                      {{{3/4}}}
</pre>

Distance walked is the same as distance bike-ridden.

{{{d/4+d/8=3/4}}}

-

{{{2d+d=3*2}}} {{{multiplied}}}{{{both}}}{{{sides}}}{{{by}}}{{{8}}}
{{{3d=3*2}}}
{{{highlight(d=2)}}}