Here, As ∠RVP & ∠RVS forming the linear pair, sum of their angles would be equal to 180 degrees.
In Mathematical form,
∠RVP + ∠RVS = 180
∠RVP + 63 = 180 [ As ∠RVS = 63 ]
∠RVP = 180 - 63
∠RVP = 117
In short, Your Final answer would be 117 degrees
Hope this helps!