Question

1. what is the value of x? (x + 23)° (2x + 4)° a 19 b 21 c 51 d 74

Explanation:

Step1: Set up equation

Vertical - angles are equal. So, $x + 23=2x + 4$.

Step2: Solve for x

Subtract $x$ from both sides: $23=x + 4$.
Then subtract 4 from both sides: $x=23 - 4$.
$x = 19$.

Answer:

A. 19