Question 1137447
<pre>
PERSON      QUANTITY WALKED
jada         e+4
elana        e
lin          (e+4)+2
TOTAL         37
</pre>


The total or sum in terms of e for Elana's quantity,
{{{3e+10=37}}}

-

{{{3e=27}}}

{{{e=9}}}---------and you can evaluate the other two.