Write a balanced equation showing the rehydration of the anhydrous magnesium sulfate

Is there a difference between
Write a balanced equation showing the rehydration of the anhydrous magnesium sulfate.
Write a balanced equation showing the dehydration of magnesium sulfate tetra-hydrate.

Wouldn't they both be MgSO4 + 4H2O?

Rehydration:
MgSO4 + 4 H2O → MgSO4·4H2O

Dehydration:
MgSO4·4H2O → MgSO4 + 4 H2O