Introductory Algebra for College Students (7th Edition)

$x \lt 5$ Refer to the image below for the graph.
Divide $4$ on both sides of the inequality to obtain: $\frac{4x}{4} \lt \frac{20}{4} \\x \lt 5$ To graph this inequality, plot a hole (or hollow dot) at $x=5$, then shade the region to the left of $5$. (refer to the attached image in the answer part for the graph)