SOLUTION: In one season, Kim ran 18 races. This was four fewer races than twice the number of races Kelly ran. How many races did Kelly run?

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Hello!
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If Kelly ran x number of races, we can then say Kim ran 2x-4=18.
So we now solve for x to determine how many races Kelly ran.
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Since Kelly is x, she ran 11 races.
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Let's check for Kim's number of races.



... it checks!
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Done! :)