Final Value of Variable After Performing Operations LeetCode solution in Python

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# Runtime: 111 ms (Top 13.83%) | Memory: 14 MB (Top 12.56%)
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class Solution:
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    def finalValueAfterOperations(self, operations: List[str]) -> int:
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        x = 0
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        for o in operations:
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            if "+" in o:
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                x += 1
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            else:
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                x -= 1
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        return x