Question 1093232
<br>The first solution posted overlooked the fact that John traveled for 2 hours and Wilbur for only one hour.  Other than that, it is a simpler approach than used in the second response.<br>
Correcting the oversight in the first response, we have
John traveling for 2 hours at speed x;
Wilbur traveling for 1 hour at speed x-12; and
at the end they are 159 miles apart.  So<br>
{{{2(x) + 1(x-12) = 159}}}<br>
And, as was said in the first response, you should be able to finish from there.