Net force of 2n going right, 4n going right and 5n going left.

To find the net force, we need to subtract the forces going in the opposite direction from the forces going in the same direction.

Total force going right: 2N + 4N = 6N
Total force going left: 5N

Net force = Total force going right - Total force going left = 6N - 5N = 1N going right.