-5x + 20 < 5

To solve for x, we need to isolate x on one side of the inequality sign.

Subtracting 20 from both sides:

-5x < -15

Next, we need to isolate x by dividing both sides by -5. Since we are dividing by a negative number, we need to flip the direction of the inequality sign:

x > 3

So the solution is:

x > 3