Question 212926
How about this:  Distance traveled = {{{abs(x-30)<=3}}}

{{{-3<=x-30<=3}}}


In order to solve for x, you must ADD +30 to the left, middle, and right part of this inequality.  It's like having 3 grandchildren!  If you do something for 1 of them, you had better be prepared to do it for ALL 3 of them to keep things in balance!!


{{{-3+30 <=x-30+30<=3 + 30}}}
{{{27<=x<=33}}}


R^2


Dr. Robert J. Rapalje