in one season anna ran 18 races this was four fewer races than twice the number

Mathematics
Tutor: None Selected Time limit: 1 Day

in one season anna ran 18 races this was four fewer races than twice the number of races kelly ran how many races did kelly run? 

Dec 9th, 2014

Assuming Kelly ran x races.

Then 2x-4=18

2x=18+4=22

x=11

So Kelly ran 11 races.

Dec 9th, 2014

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