Hi! i need help on number 4 and 5 please! this is due tmr

In the picture

Step-by-step explanation:

Hey again ! If you have any question feel free to ask !!

Question 4:

Solve for the variable N in

Step-by-step 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

Step-by-step explanation:

1. Subtract from both sides;

2. Separate variable by adding to both sides;

3. Simplify equation by dividing by on both sides;