We must solve for N the following equation:
[tex]9N=55-2N.[/tex]1) First, we pass the -2N at the right as +2N at the left:
[tex]9N+2N=55.[/tex]2) Simplifying this equation, we have:
[tex]11N=55.[/tex]3) Dividing both sides by 11, we get:
[tex]N=\frac{55}{11}=5.[/tex]AnswerN = 5