Help plz,
Set up an equation to solve the following problem, and then solve it.
On a sales trip, Irwin drove 330 miles averaging a certain speed. The return trip was at an average speed that is 11mph faster. Total time for the round trip was 11 hours. Find Irwin’s average speed on each part of the trip.

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well, its not hard , what dont we know , what we do we need to find , assign them to variables

Use distance equal rate times time.

let x equal the "certain speed"

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