Question

Z=7f/r+4 , solve for r

Answer 1

Answer:

              7f

     r = -----------  -  4

                z

Step-by-step explanation:

I will assume that you meant:

         7f

z = ------------

        r + 4

Solve for r.  Start by interchanging z and (r + 4):

               7f

r + 4 = -----------

                z

Now subtract 4 from both sides.  This isolates r:

              7f

     r = ----------- - 4

                z