Question

1. -18 = n - 18

Explanation:

Step1: Add 18 to both sides

To solve for \( n \), we add 18 to both sides of the equation \(-18 = n - 18\). This gives us \(-18 + 18 = n - 18 + 18\).

Step2: Simplify both sides

Simplifying the left side, \(-18 + 18 = 0\). Simplifying the right side, \(n - 18 + 18 = n\) (because \(-18 + 18 = 0\) and it cancels out). So we have \(0 = n\), which means \(n = 0\).

Answer:

\(n = 0\)