Answer:
Option (2) is correct.
s = 7 satisfy the given equation
.
Explanation:
Consider the given equation,
We have to solve for the value of s so that it satisfy the given equation
We first check for s = 2,
LHS = s = 2
RHS =
Put s = 2 , we get ,

we get LHS = 2 and RHS = 6 which are not equal.
Thus, s = 2 does not satisy the given equation.
We now check for s = 7
LHS = s = 7
RHS =
Put s = 7 , we get ,

we get LHS = 7 and RHS = 7 which are equal.
Thus, s = 7 satisfy the given equation
.