How do you write an algebraic expression that models the word phrase "two times the difference of a number and eight"?

1 Answer
Apr 30, 2018

#2(n-8)# or #2n-16#

Explanation:

I'll use #n# to represent the unknown number

The difference of two numbers is the first number subtracted by the second number.

The difference of a number #n# and eight is #n-8#

Two times something is multiplying something by #2#.

Two times #n-8# is #2(n-8)# or #2n-16#