There were 53 dollars in Olivia's wallet. She collected 91 more dollars from an atm. After she visited a supermarket there were 14 dollars left. How much more money did she spend at the supermarket than she collected at the atm?
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Olivia had 53 dollars in her wallet. She collected 91 more dollars from the ATM, so now she has 144 dollars. After she visits the supermarket, she has 14 dollars left. 

How much money did she spend at the supermarket? We can figure this out by subtracting the amount of money she had after the supermarket from the amount of money she had before the supermarket. 

144 (amount of money she had before the supermarket) - 14 (amount of money she had after the supermarket) = 130

Olivia spent 130 dollars at the supermarket.