Question

Change the subject of a formula to S

Answer 1

You want to "solve" this formula for s.

          7s+4
If t = ----------- , then 2t = 7s + 4.  Subtract 4 from both sides.  Then
             2           
                                   2t - 4
7s = 2t - 4, and s = --------------    (answer)
                                      7