Help please! Work do be a struggle tho

Answer:
[tex] h = \dfrac{S}{2 \pi r} - r [/tex]
Step-by-step explanation:
[tex] S = 2 \pi rh + 2 \pi r^2 [/tex]
[tex] 2 \pi rh + 2 \pi r^2 = S [/tex]
[tex] 2 \pi rh = S - 2 \pi r^2 [/tex]
[tex] h = \dfrac{S}{2 \pi r} - \dfrac{2 \pi r^2}{2 \pi r} [/tex]
[tex] h = \dfrac{S}{2 \pi r} - r [/tex]