Question

olve for the value of z.

Explanation:

Step1: Identify vertical angles

Vertical angles are equal, so \(7z + 7 = 9z - 7\).

Step2: Solve for \(z\)

Subtract \(7z\) from both sides: \(7 = 2z - 7\).
Add 7 to both sides: \(14 = 2z\).
Divide by 2: \(z = 7\).

Answer:

\(z = 7\)