Answer: x = 18
Explanation:
First, since both angles shown are equal to each other, you can immediately set your equation. 
 5x + 5 = 95
Next, move 5 to the opposite side of the equation to isolate your x value (5x). This step is simply subtracting the hanging 5. 
 5x + 5 (-5) = 95 (-5)
 5x = 90 
Finally, you need to divide both sides of the equation by 5 (the 5 next to the x) to *fully* isolate the x value. 
 5x / 5 = 90 / 5
 x = 18
final answer: x = 18 
Hopefully this helps with the remainder of your lesson! :)