Question

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

Explanation:

Step1: Set up the equation

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

Step2: Isolate the variable $x$

Subtract $x$ from both sides: $23=x + 4$.

Step3: Solve for $x$

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

Answer:

A. 19