Answer:
[tex]\huge\boxed{\bf\:x = 10}[/tex]
Step-by-step explanation:
[tex]20x + 19 = 219[/tex]
Subtract 19 from both the sides of the equation.
[tex]20x = 219 - 19\\20x = 200[/tex]
Now, divide both sides of the equation by 20.
[tex]x = \frac{200}{20} \\\boxed{\bf\:x = 10}[/tex]
[tex]\rule{150}{2}[/tex]
