How do you solve #d- 1< 4#?

1 Answer
Lithia
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

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