To get rid of the \(-10\) on the left side of the equation \(10g - 10 = -6\) and ensure all the constant numbers are on the right, you should add 10 to both sides of the equation.
This will balance the equation and result in:
\[ 10g - 10 + 10 = -6 + 10 \]
Which simplifies to:
\[ 10g = 4 \]
So, the correct move is to add 10 to both sides.