SOLUTION: |2x-4|<6 does this mean (2x-4)<6 or does it mean something else? thanks Homework Mom Jackie

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Question 208185: |2x-4|<6
does this mean (2x-4)<6 or does it mean something else?
thanks
Homework Mom
Jackie

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

abs%282x-4%29%3C6 Start with the given inequality


Break up the absolute value (remember, if you have abs%28x%29%3C+a, then x+%3E+-a and x+%3C+a)

2x-4+%3E+-6 and 2x-4+%3C+6 Break up the absolute value inequality using the given rule


-6+%3C+2x-4+%3C+6 Combine the two inequalities to get a compound inequality



-2+%3C+2x+%3C+10 Add 4 to all sides


-1+%3C+x+%3C+5 Divide all sides by 2 to isolate x



----------------------------------------------------

Answer:

So our answer is

-1+%3C+x+%3C+5



which looks like this in interval notation





if you wanted to graph the solution set, you would get

Graph of the solution set in blue and the excluded values represented by open circles