Answer:
n=37
Step-by-step explanation:
Two lines intersect and create vertical angles.
The vertical angles are [tex](3n-28)^\circ$ and 83^\circ.[/tex]
We know that vertical angles (also called vertically opposite angles) are equal. Therefore:
[tex](3n-28)^\circ$ = 83^\circ.\\3n=28+83\\3n=111\\$Divide both sides by 3\\n=37[/tex]