Frequent Questions about our Solver

The problem

Answer provided by our tutors

When solving inequality, it is best to select 'Graph' tab first and then type down the inequality. This way you will get a graph of the solution. So, in your case the solution is (click here to see the step by step solution):

or written as interval

You can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem:

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