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George can walk at x miles per hour and he can rollerblade at x + 3 miles per hour. He goes to the library walking with his rollerblades in his backpack and it takes him 15 minutes and when he comes home rollerblading along the same route, it takes him ony 9 minutes. Find the speed at which George walks.

 Aug 24, 2021
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CPhill can help!

https://web2.0calc.com/questions/algebra-problem_44

 Aug 24, 2021

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