Question

Solve for the variable R

C=1/8Rt

Answer 1

C=
`(1)/(8)`Rt=
`(Rt)/(8)`

Multiply both sides by 8.
8C=Rt

Divide both sides by t.

`(8C)/(t)`=R

Answer 2

`C=(1)/(8)*R*t \\\\ C=(Rt)/(8) \\\\ \boxed{R=(8C)/(t)}`