Question

solve for the value of z.
answer attempt 1 out of 99
z =

Explanation:

Step1: Set up the equation

Vertical angles are equal. So, \(8z - 3=7z + 7\).

Step2: Solve for \(z\)

Subtract \(7z\) from both sides: \(8z-7z-3 = 7z - 7z+7\), which simplifies to \(z-3=7\).
Then add \(3\) to both sides: \(z-3 + 3=7+3\).

Answer:

\(z = 10\)