After removing brackets, you simplify expressions using the BODMAS rule, which stands for Brackets, Orders (powers and roots), Division and Multiplication (from left to right), and Addition and Subtraction (from left to right). When removing a minus sign outside a bracket, you multiply each term inside by \(-1\), which changes the sign of each term. When a number is outside the brackets, you multiply that number by each term inside the brackets.
After removing the brackets we simplify the expression according to;
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Question context
This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.