How do you solve #-13\geq n - 4#?

2 Answers
Doug2100
Mar 8, 2018

#n<=-9#

Explanation:

You will add 4 to both sides of the equation. This leaves us with #-13+4<=n-4+4#
#-9<=n#
On a number line, you would mark -9 with a solid dot and connect a ray going to the left of the number line from the dotted -9. enter image source here

Umer F.
Mar 8, 2018

#\text{Solution:} " " " " n\le-9#

#\text{Interval Notation:}" "" "(-\infty\ ,\ -9]#

# #

Explanation:

# #
#-13\ge \ n-4#

The first step is to switch sides:

#n-4\le \ -13#

Add #\ 4\ # to both sides:

#n-4+4\le \ -13+4#

Simplify:

#n\le -9#

# #
enter image source here
# #

That's it!

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