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Traveling at a constant rate of 15 miles per hour, it took Bob x hours to go from his home to his school. Traveling at a constant rate of 20 miles per hour, it took Bob x − 1 hours to travel the same route. What is the value of x?

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Traveling at a constant rate of 15 miles per hour, it took Bob <em>x</em> hours to go from his home to his school. Traveling at a constant rate of 20 miles per hour, it took Bob <em>x</em> − 1 hours to travel the same route. What is the value of <em>x</em>?






 
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