Question 1034476
<pre>
r       speed without wind
w       speed of wind
t[a]    time against wind
t[b]    time with the wind
d[a]    distance against wind
d[b]    distance with the wind
</pre>


UNKNOWN VARIABLES:  r and w


<pre>
                  SPEED          TIME         DISTANCE

AGAINST           r-w             {{{t[a]}}}        {{{d[a]}}}

WITHWIND          r+w             {{{t[b]}}}        {{{d[b]}}}
</pre>


SYSTEM OF EQUATIONS:  {{{system((r-w)*t[a]=d[a],(r+w)t[b]=d[b])}}}
Solve the system of equations for r and w.