To solve the equation represented by the algebra tiles, the first step would typically involve simplifying the equation by removing any terms that can cancel each other out or by isolating the variable.
Based on the provided options, the best choice is:
Remove a zero pair.
Removing a zero pair will help simplify the equation and make it easier to isolate the variable in subsequent steps. If there are other operations needed, such as moving tiles from one side to another, they can be considered after simplifying.