Okay thank you! :) Last question, let's say the absolute value equation is |x-8|-|x-2|+|x|=6. Then what would the intervals you are testing be?
Would it be x<0 , 0<x<2 , 2<x<8 , 8<x ??? or
would it be x<0 , 0≤x≤2 , 2<x<8 , 8≤x or
would it be x≤0 , 0<x<2 , 2≤x≤8 , 8<x or
would it be x<0 , 0≤x<2...