To add \(3h\) to both sides of the equation \(2h - 6 = -3h - 5\), we follow these steps:
Starting with the original equation:
\[ 2h - 6 = -3h - 5 \]
Now, add \(3h\) to both sides:
\[ 2h - 6 + 3h = -3h - 5 + 3h \]
Combine like terms:
On the left side: \[ 2h + 3h - 6 = 5h - 6 \]
On the right side: \[ -3h + 3h - 5 = 0h - 5 = -5 \]
Putting it all together, we get:
\[ 5h - 6 = -5 \]
So, the new equation is:
\[ 5h - 6 = -5 \]