Frequent Questions about our Solver

The problem

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this is not giving me the answer to the equation I input with the answer in my book. Why

Answer provided by our tutors

The answer to the equation is: 102/5

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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. Quite often, several transformations will be performed within the same step. Use the explanation navigation buttons to step through all of them:

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