SOLUTION: Solve the following inequality and list your solution using interval notation: |-3x – 5| > 10

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Question 115273: Solve the following inequality and list your solution using interval notation:
|-3x – 5| > 10

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given inequality


Break up the absolute value (remember, if you have , then or )

or Break up the absolute value inequality using the given rule




Now lets focus on the first inequality


Start with the given inequality


Add 5 to both sides


Combine like terms on the right side


Divide both sides by -3 to isolate x (note: Remember, dividing both sides by a negative number flips the inequality sign)



Reduce


Now lets focus on the second inequality


Start with the given inequality


Add 5 to both sides


Combine like terms on the right side


Divide both sides by -3 to isolate x (note: Remember, dividing both sides by a negative number flips the inequality sign)



Divide



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

Answer:

So our answer is

or


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

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