How to simplify an expression by following order of operations and distributive property

The video tutorial explains the use of grouping symbols in mathematical expressions, emphasizing the importance of simplifying the innermost parentheses first. It covers the application of the distributive property and the process of combining like terms to simplify expressions. The tutorial aims to clarify common mistakes students make when dealing with complex expressions and provides a step-by-step approach to solving them.

What does the 'P' in PEMDAS stand for, and why is it important in solving expressions?

Explain the significance of innermost parentheses when simplifying expressions.

Why can't you simplify the expression X - 1? What does it mean for terms to be 'like'?

Describe the process of applying the distributive property in the context of the given expressions.

What is the final simplified answer of the expression discussed, and how did you arrive at that conclusion?