Question 4:
Solve for the variable N in

Answer:

Explanation:
1. Subtract
from both sides;

2. Separate variable
by adding
to both sides;

3. Simplify equation by dividing by
on both sides;

Question 5:
Solve for the variable N in

Answer:

Explanation:
1. Subtract
from both sides;

2. Separate variable
by adding
to both sides;

3. Simplify equation by dividing by
on both sides;
