How do you combine like terms in #(9m - 5) - ( 9m + 5)#?

1 Answer
Lil Del
Nov 2, 2016

This expression simplifies to #-10#.

Explanation:

Begin by distributing the negative to the second binomial. Then you can combine like terms.

#(9m - 5) - (9m + 5)#
#9m - 5 - 9m - 5#
#-10#

Remember that #9m - 9m = 0#.

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