1. The original problem involved a term with -3, and now it is changed to +3. 2. Replace every occurrence of -3 in the original expression with +3. 3. Simplify or solve the equation or expression accordingly using the updated value 3 instead of -3. 4. This change affects all calculations, so carefully redo steps involving that term. Since the user did not provide the original problem, the explanation is generic but clear on the substitution and solving process.