# How do you solve d- 1< 4?

Mar 6, 2017

$d < 5$

#### Explanation:

$d - 1 < 4$

$d - 1 + 1 < 4 + 1$

$d < 5$
so what that means is that on a number line, you only have values up until 5 (not including 5)

the proper notation is $\left(- \infty , 5\right)$

$<$ is an open hole when graphing
$\le$ is a closed hole when graphing

sorry I used MS Paint