Question 503433
<pre>
{{{28/z}}} = {{{24/(z-5)}}}

Cross-multiply or multiply through by LCD = z(z-5) 
Either way you get:

28(z-5) = 24z

28z - 140 = 24z
      28z = 24z + 140
       4z = 140
        z = 35

There is only one solution, 35.

Edwin</pre>