## Intermediate Algebra (6th Edition)

$(-\infty,4.7)$
$5x\lt-23.5\longrightarrow$ Solve for x by dividing both sides by 5. $5x\div5\lt-23.5\div5\longrightarrow$ Simplify. $x\lt4.7$ This is written in interval notation as $(-\infty,4.7)$ where ) indicates the values in the solution set approach 4.7 but do not actually include 4.7.