To get rid of the \(-3h\) on the right side of the equation and have only \(h\) terms on the left side, you should add \(3h\) to both sides of the equation. This will keep the equation balanced.
Starting with the equation:
\[2h - 6 = -3h - 5\]
If you add \(3h\) to both sides, you will get:
\[2h + 3h - 6 = -3h + 3h - 5\]
This simplifies to:
\[5h - 6 = -5\]
Now all the \(h\) terms are on the left side. So, the correct move is to add \(3h\) to both sides.