Question 1164846
<pre>
           SPEED       TIME        DISTANCE

RAN          r          24/r          24

BIKE        r+6        18/(r+6)       18

Total                    3
</pre>
Solve for r, in equation {{{24/r+18/(r+6)=3}}}.



This example lets you multiply both sides by  {{{1/3}}}:


{{{8/r+6/(r+6)=1}}}

and then multiply both sides by {{{r(r+6)}}}  (or the two steps could have been combined into one).

{{{8(r+6)+6r=r(r+6)}}}

and continue,

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