-np - 90 < 30
Add 90 to each side, since we have to do everything on one side so we can solve the unknown variable.

Simplify/add 30 + 90, which should equal 120.

Divide each side by p, which should create a fraction due to the division.

Our last step is to multiply each side by -1. We got negative 1 since a variable by itself can be considered the number 1, and since it had a negative sign in front of it.

Answer:
