How do you solve #|x – 9| < 11#?
1 Answer
Nov 1, 2015
Explanation:
Note that
#|x-9| < 11#
#implies -11 < x-9 < 11#
#implies -11 + 9 < x < 11 + 9#
#implies -2 < x < 20#
Note that
#|x-9| < 11#
#implies -11 < x-9 < 11#
#implies -11 + 9 < x < 11 + 9#
#implies -2 < x < 20#