Each time in the sequence, 20 is subtracted.
Answer:
<h2>n = 4</h2>
Step-by-step explanation:

To isolate the variable means to get it by itself.
Answer:

Step-by-step explanation:
Bring the five to the other side of the equation.

Add the double negatives.

Divide. (flip the sign on account of dividing by a negative number.)
