How do you solve d- 1< 4?

1 Answer
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 (-oo, 5)

< is an open hole when graphing
<= is a closed hole when graphing

enter image source here
sorry I used MS Paint