To isolate the \( r \) terms on the right side of the equation and eliminate \( 3r \) from the left side, the correct move is to subtract \( 3r \) from both sides. This will help you achieve your goal of having only \( r \) terms on one side of the equation.
So, the next step should be:
Subtract \( 3r \) from both sides:
\[ 3r - 3r - 2 = 6r + 10 - 3r \]
This simplifies to:
\[ -2 = 3r + 10 \]