Answer
The pressure on the left side is equal to the pressure on the right side.
Work Step by Step
Since the piston is in equilibrium, the net force on the piston is zero. Therefore, the force exerted on the piston from the left is equal in magnitude to the force exerted on the piston from the right. Since the area of the piston is the same on both sides, the pressure on both sides of the piston must be equal. The pressure on the left side is equal to the pressure on the right side.
