Question

1. 1 = a - 2 - 1

Explanation:

Step1: Simplify the right side

Simplify \(a - 2 - 1\) to \(a - 3\). So the equation becomes \(1=a - 3\).

Step2: Solve for \(a\)

Add 3 to both sides of the equation: \(1 + 3=a-3 + 3\). This simplifies to \(4 = a\).

Answer:

\(a = 4\)