Karleys bank account was negative $12.14. she then deposited $21.63. What was her account balance

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Karleys bank account was negative $12.14. she then deposited $21.63. What was her account balance

negative 12.14 can be written as
-12.14

She then deposited 21.63 which means we add 21.63 to her bank account balance:
+21.63

Final account balance is:
-12.14 + 21.63 = $9.49