He owed $47 to the bank from withdrawing more than he had.
However, he got his paycheck, and it was $598.73
Before he can save, he has to pay back his amount.
-47 + 598.73 is the same as 598.73 - 47
Subtract:
598.73 - 47 = 551.73
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Peter's bank account has $551.73 after depositing
hope this helps