How do you solve #4n - 12 = 12 - 4n#?

1 Answer
Jul 8, 2016

Answer:

#n = 3#

Explanation:

#4n - 12 = 12 - 4n#

This is our given equation. Add #4n# to both sides

#8n -12 = 12#

We end up with all variable terms on one side. Now add #12# to both sides to get the variable term by itself on that side

#8n = 24#

Now all we have to do is divide out the eight from both sides to get a solution for #n#.

#n = 3#

You can check your work (as always) and plug in #3# for all variables #n#. You end up with #0=0#, which is true, which also indicates we did our work correctly and #3# is a correct solution.